Showing posts with label Healthy. Show all posts
Showing posts with label Healthy. Show all posts

African Refugee Children at High Risk for Kala-azar, Malaria, Viral Infections

Some 300,000 children are receiving vaccinations against polio and measles at one of the largest refugee camps in Kenya. They also are receving vitamin A and de-worming tablets as health workers try to protect the children against deadly viral and parasitic infections.

Severe malnutrition has blinded one child, but her mother still hopes she will survive.

"I pray so that she gets back on her feet here, otherwise there is not much I can do but leave it all to God," said a mother. Yet another child has met an all-too-familiar fate. She is among the 40 to 50 children who the United Nations estimates die every day from malnutrition on the Horn of Africa.

Josette Sheeran, executive director of the U.N. World Food Program, says the epic drought often forces mothers to abandon weak children as families walk for days to get to refugee camps in Kenya and Ethiopia.

“About one out of four are really in dire conditions and if children get to level four malnutrition only about 40 percent can even be revived," said Sheeran.

Pediatricians warn that malnourished children are susceptible to infections and that mortality is particularly high among children under five.

Dr. Peter Hotez is a tropical disease expert.

“Children are vulnerable to a number of viral pathogens, including measles, bacterial pathogens including those that cause cholera and other diarrheal diseases, as well as bacterial pathogens that cause bacterial meningitis," said dr. Hotez. "Finally they are susceptible to parasitic infections especially a terrible disease called Kala-azar, otherwise known as visceral leishmaniasis.”

Dr. Hotez says that in addition to their urgent need for food and shelter, these children also need essential vaccines.

“Measles vaccines, possibly cholera vaccines as well, the meningitis vaccine - remember this is not too far from the meningitis belt of Africa so immunizing against meningococcus A," he said. "And then we want to provide hepatitis control so hepatitis vaccination would be ideal."

Health experts also advise sleeping under insecticide-treated bed nets to prevent deadly outbreaks of malaria in overcrowded refugee settings. More than two million children are at risk of malaria and kala-azar in famine stricken Africa.

Wanita perokok

Dijaman sekarang mungkin bukan hal yang aneh lagi jika kita memperhatikan disekeliling kita jika ada seorang wanita yang merokok, hal ini disebabkan gaya hidup yang cenderung ditiru dari kebudayaan asing. Terakhir kali saya sempat memperhatikan gerombolan pelajar wanita sma yang sedang asik merokok disebuah café bilangan Jakarta selatan, yang dengan asiknya bersenda gurau dengan kawan-kawan nya sambil asik merokok, tanpa mempedulikan orang disekitar nya.

Dengan tanpa disadari bahaya dari rokok tersebut terhadap kesehatannya, padahal jelas kita ketahui bahwa kandungan yang terdapat didalam rokok tersebut sangatlah berbahaya, akan tetapi mengapa masih saja wanita tidak menghiraukan bahaya dari rokok tersebut, terlebih lagi wanita yang sedang mengandung atau sedang menyusui, dokter kandungan sangat menyarankan agar sang ibu menghindari merokok, karna dampak yang akan diberikan dari asi ibu tersebut akan membahayakan sang anak.

Berdasarkan catatan statistik keluarga berencana yang saya dapat dari situs BKKBN, disebutkan bahwa tingkat keguguran dari seorang ibu yang perokok aktif mencapai 2% selama tahun 2007 dan diperkirakan akan meningkat di tahun 2008 ini.

Sempat saya mempertanyakan seorang wanita yang menjadi rekan kerja saya yang sudah menjadi perokok berat, dan dengan lantang nya ia menjawab, “saya merokok untuk menghilangkan stress, dan membuat saya lebih enjoy dalam menjalani sesuatu hal”, mungkin beberapa orang akan berpendapat yang sama dengan jawaban dari rekan kerja saya.
Dampak bahaya dari rokok bukan hanya menyerang diri kita, akan tetapi juga merugikan sekeliling kita yang menghirup asap dari rokok tersebut. Beberapa hasil penelitian para dokter membuktikan bahwa asap rokok sangatlah berbahaya pagi perokok pasif dibandingkan kita yang mengihisap rokok tersebut, jadi ketahuilah bahwa rokok dapat merusak kesehatan pada diri kita dan orang lain. Mulailah hidup sehat dari sekarang.

Sekolah Kedokteran

Banyak nya sekolah kedokteran yang menjanjikan akhir-akhir ini membuat para siswa sedikit bingung untuk memilih program studi yang baik untuk diambil. Mungkin faktor beberapa fasilitas di sekolah tersebut yang membuat banyak nya keraguan para siswa untuk mendaftar dirinya.
Beberapa faktor alasan para siswa mendaftarkan diri pada sekolah kedokteran, antara lain; Fasilitas dari sekolah kedokteran tersebut, Dokter-dokter yang berkualitas yang memberikan praktek pada sekolah kedokteran. Akan tetapi bagi anda yang ingin mengikuti studi Medical Assistant, anda tidak usah bingung untuk memilih nya.
Kita ambil contoh Medical assistant St.Augustine yang berlokasi di Peachtree Road, Atlanta, dimana sekolah ini memberikan fasilitas lengkap kepada para siswa nya dalam melakukan medical assistant training untuk setiap aktifitas nya, hal ini mempunyai maksud agar tiap siswa dapat langsung terjun mengerjakan setiap detail pekerjaan, agar dapat menjadikan siswa yang berkualitas.

Fasilitas medical assistant yang diberikan dari St.Augustine ini sudah banyak menciptakan siswa-siswa yang berkualitas, yang sekarang sudah bekerja di rumah sakit terkemuka diseluruh dunia.

Jadi mulai sekarang jangan bingung untuk memilih program studi untuk sekolah kedokteran kamu, kunjungi medical assistant school St.Augustine sekarang, dan daftarkan diri anda.

Chronic Fatigue Bagi Workaholic

Bagi Anda workaholic sejati, berhati-hatilah. Bekerja tanpa kenal waktu dan melupakan apa yang dibutuhkan tubuh seperti beristirahat dan mengabaikan asupan energi dari makanan dapat mengakibatkan kelelahan fisik kronis. Jika terjadi secara berkepanjangan, akan membuat Anda terkena sindrom kelelahan.

Untuk workaholic, bekerja adalah kebutuhan. Dan hidup selalu digunakan untuk bekerja. Tapi tahukan Anda ada hak-hak yang terabaikan karena asyiknya Anda bekerja?, hak-hak itu adalah milik tubuh Anda.

Dokter sendiri tidak mengetahui apa yang menyebabkan kelelahan kronis (chronic fatigue). Beberapa orang mengalaminya setelah terinfeksi virus atau bakteri, seperti flu. Tapi tidak ada fakta yang membuktikan hubungan antara virus atau bakteri dengan kelelahan kronis ini.

Gejala utama dari kelelahan kronis adalah merasa kelelahan yang amat sangat dalam kurun waktu 6 bulan dan tidak disertai dengan istirahat yang cukup. Kelelahan ini juga dipengaruhi oleh pekerjaan Anda, aktivitas atau kegiatan anda sehari-hari.

Kelelahan dan gejala lainnya bisa saja terjadi secara tiba-tiba dan berlangsung dalam jangka waktu lama.

*Pelupa, kehilangan memori, bingung atau sulit berkonsentrasi
*Suara serak
*Terdapat kelenjar yang menonjol pada tenggorokan bagian atas (lymph nodes)
*Sakit otot
*Urat berwarna kemerahan atau mengalami pembengkakan
*Sakit kepala yang dirasakan berbeda dari biasanya, lebih sakit
*Tidur yang tidak nyenyak dan banyak terbangun pada malam hari

Karena kelelahan kronis ini sangat sulit di diagnosa, para ahli kesehatan memiliki beberapa peraturan untuk membantu mendiagnosa masalah ini. Untuk mendiagnosanya, Anda pasti merasa kelelahan, dan memiliki gejala seperti diatas.

Bagaimanapun, jika Anda memiliki gejala-gejala di atas secara terus-menerus, tidak ada penjelasan mengapa Anda selalu merasa kelelahan, dalam jangka waktu 6 bulan, maka Anda membutuhkan pengobatan.

Orang yang mengalami kelelahan kronis, akan berpengaruh kepada masalah tekanan darah. Anda akan merasa pusing atau berkunang-kungan ketika Anda mencoba berdiri setelah jongkok atau duduk, bahkan kehilangan keseimbangan. Kondisi ini disebut dengan orthostatic hypotension.

Depresi merupakan hal yang bisa menjadi penyebab dan dapat memuat gejala-gejala lain yang timbul semakin parah. Obat anti depresan dapat membuat Anda merasa lebih baik.

Untuk menguranginya, Anda bisa membeli obat dengan resep dokter yang mengandung acetaminophen, ibuprofen, atau obat-obatan lainnya yang dapat mengurangi sakit kepala dan rasa nyeri di badan. Kadang antidepresan juga digunakan, namun biasanya digunakan untuk membangkitkan mood, mengontrol rasa sakit, dan dapat membuat Anda tidur.

Selain mengonsumsi obat-obatan, Anda juga harus mengatur hidup Anda sebaik mungkin. Anda harus dapat menjadwalkan kapan Anda harus bekerja, dan kapan harus beristirahat.

Imbangi perubahan pola hidup Anda dengan makan makanan bernutrisi dan olah raga yang sesuai dengan kondisi tubuh Anda. Sebuah studi menunjukkan bahwa orang dengan jadwal kegiatan yang teratur dapat mencegah risiko kelelahan kronis dan memiliki energi juga stamina yang baik.

Makanan Sehat

Perawatan kulit dari luar pasti sudah sering Anda dengar. Mulai dari yang alami seperti lulur tradisional hingga cara-cara yang lebih modern seperti botox dan lain-lain. Pertanyaannya, selain perawatan dari luar yang sudah disebutkan tadi, ada tidak sih perawatan dari dalam yang bisa dilakukan untuk membuat kulit sehat? Ternyata kulit yang sehat dan indah juga bisa didapat diperoleh melalui makanan yang bergizi dan sesuai dengan jenis kulit.

Makanan sehat memang rasanya tidak seenak junk food, tapi dengan mengenali kondisi kulit Anda dan memilih makanan dan minuman sehat dan bergizi sesuai dengan komposisi yang dibutuhkan akan sangat membantu. Atau bisa juga dengan membiasakan untuk memakan makanan tersebut setiap harinya. Karena tidak selamanya kok makanan bergizi itu memiliki rasa yang tidak enak.

Beberapa jenis buah dan sayuran bahkan rempah-rempah dibawah ini bisa Anda jadikan pilihan. Dimana makanan-makanan tersebut tentunya penuh dengan kandungan vitamin A, C, E, zat besi dan selenium yang diperlukan tubuh dan kulit.

1. Buah jeruk, si bulat berwarna oranye ini bisa menemani Anda saat makan siang. Ganti air mineral atau soft drink yang biasa dipesan dengan jus jeruk. Hindari pemanis atau gula. Akan lebih baik jika diminum murni. Kaya akan vitamin E yang baik untuk mencerahkan kulit.

2. Buah alpukat, buah ini seperti buah jeruk yang mengandung banyak vitamin E yang cocok untuk kulit. Dapat dikonsumsi secara langsung ataupun di jus. Minyaknya sering digunakan sebagai bahan dasar sabun untuk tubuh dan wajah yang dapat digunakan mulai dari bayi hingga orang dewasa.

3. Buah aprikot, cocok untuk kulit kering dan kusam. Sebelum tidur manjakan diri Anda dengan plain milk yang dicampur dengan buah aprikot.

4. Untuk kulit kering dan sensitif, buah stroberi bisa jadi pilihan. Buah ini mengandung antioksidan yang bemanfaat bagi tubuh untuk menjaga kesehatan kulit.

5. Mulailah mencintai sayur-sayuran, misalnya wortel, selain baik untuk mata juga baik untuk kulit Anda.

6. Biji bunga matahari atau yang lebih dikenal dengan kuaci bisa dijadikan alternatif cemilan favorit. Selain menjaga kekuatan tulang, biji bunga matahari yang mengandung thiamin dan niacin juga berguna untuk menjaga kesehatan otak dan kelembapan kulit.

7. Wanita biasanya takut memakan telur, padahal telur itu kaya akan protein untuk menjaga kesehatan kulit. Asal tidak dikonsumsi dalam jumlah yang berlebihan tentunya tidak akan menjadi masalah.

8. Onion dan garlic. Bawang putih sangat dianjurkan untuk dikonsumsi, terutama untuk para wanita. Karena mengandung chromium dan vitamin C yang dapat mengurangi resiko penyakit kanker sekaligus memelihara tulang agar tetap kuat. Sedangkan bawang merah bisa membantu meremajakan sekaligus menghaluskan kulit. Jangan takut dengan baunya yang kurang enak, karena bisa dihilangkan dengan menggosok gigi.

9. Sereal, selain mudah untuk disajikan, juga memiliki komposisi vitamin yang lengkap untuk tubuh dan kulit. Apalagi jika ditambahkan susu yang memiliki kandungan kalsium yang dibutuhkan untuk tulang dan gigi.

Masih banyak pilihan makanan dan minuman yang sehat dan bergizi untuk kesehatan kulit. Bukan berarti Anda tak boleh memakan junk food, tapi ada baiknya jika diimbangi lagi dengan makanan dan minuman yang sehat. Misalnya dengan mengonsumsi Yoghurt selang beberapa waktu setelah memakan junk food.

Easing the Seizures, and Stigma, of Epilepsy

Because of the strict Ketogenic diet that she is on to control her epilepsy, Nora Leitner gets frustrated after her mom wouldn't allow her to have any extra food at lunch.

In Brief:
Epilepsy affects millions of families worldwide; half of all epilepsy patients are children. The disease has long carried a stigma that persists today, hampering progress in care and public awareness.

Some 30 percent of patients, many of them children, have intractable seizures that cannot be controlled by existing treatments. The first thing you notice about 13-year-old Nora Leitner is the dark circles under her eyes. They stand in stark contrast to the rest of her appearance. At a glance she might be any petite, pretty tween girl, with her blond ponytail, elfin frame and thousand-watt smile, but the circles tell a different story. Nora looks as if she hasn’t slept in a month.

In a sense, she hasn’t. Nora has epilepsy, and as with 30 percent of those with the disorder, her seizures are not controlled by existing treatments.

She often has more than one seizure a day, mostly at night. Her seizures, called tonic-clonic (what used to be known as grand mal), cause her to lose consciousness for a full minute while her body convulses.

While some people feel an “aura” of symptoms before a seizure, Nora’s seizures happen entirely without warning. When she seized at the top of a staircase in her home in Yardley, Pa., it was plain luck that her parents were at the bottom and caught her as she fell. Though she is on the brink of adolescence, she is rarely, if ever, left alone.

Epilepsy affects 50 million people worldwide and more than 2.7 million people in the United States; half of all patients are children. Especially in its intractable form, also called refractory epilepsy, the disorder — and the side effects of epilepsy medications — can cause problems in learning, memory and behavior, and indelibly alter development. Epilepsy can also consume families, monopolizing their time, money and energy.

Despite the number of people with epilepsy — the disorder affects more Americans than do Parkinson’s disease, multiple sclerosis and Lou Gehrig’s disease combined — it still carries a stigma that dates to ancient civilizations. Many patients, doctors and families say the stigma hampers care, public recognition and the ability to raise money for research.

“There is an ongoing, significant embarrassment level about it,” said Dr. Orrin Devinsky, director of the Epilepsy Center at New York University. “The feeling, for a lot of people, is that it does carry a lot worse stigma than a cancer, or an H.I.V. even. At some level, it’s society that needs to wake up and realize it’s just another neurologic disorder.”

Warren Lammert, who runs a financial firm in Boston and whose daughter has epilepsy, founded an organization in 2002 with Dr. Devinsky and two others to support research into new treatments. “It’s better today,” he said about public perceptions of the disorder. “But even among well-educated people, people don’t like to talk about epilepsy.”

While many public figures with cancer (or cancer in the family) are forthcoming about the illness, Mr. Lammert said, the same does not go for epilepsy. And though his organization, the Epilepsy Therapy Development Project, has two strong public representatives — the Olympic women’s hockey goaltender Chanda Gunn and the hip-hop artist D J Hapa — the disorder has never found an icon like Michael J. Fox, whose openness about Parkinson’s disease helps raise tens of millions of dollars a year for research.

Meanwhile, despite advances that have helped people with treatable epilepsy, the 30 percent rate for the intractable form has changed little in 40 years. “Refractory epilepsy remains an enormous problem,,” Dr. Devinsky said.

Epilepsy results from an electrical disturbance in the brain, though at various stages in history it has been thought of as evidence of a connection to the divine, a sign of demonic possession or the mark of a witch. The types of seizures vary from staring episodes or eye blinks to sudden falls or convulsions. All can be debilitating, depending on factors like frequency and the age when they start.

Comprehensive Epilepsy Centers, medical practices that specialize in treating the disorder at 50 hospitals around the nation, represent the gold standard in therapy. Treatments include anticonvulsant medications, which can have profound effects on memory, behavior and cognitive ability; the ketogenic diet, a restrictive plan that has had remarkable success in controlling seizures; an implanted stimulator that sends regular pulses of electricity to the brain; and surgery to remove an affected area of the brain.

In the last two decades, surgery has changed the landscape of epilepsy for many patients, including children. Yet Nora Leitner, like many others, is not a candidate for surgery because her seizures involve all of her brain, rather than a localized area.

For Nora, her parents, Lee and Kina Leitner, and her brother, Ethan, 7, epilepsy has become the center of the universe, governing decisions about everything from where to live to whether to go out to dinner.

“The level of frustration and the level of stress is just phenomenal,” said Ms. Leitner, 60, a resilient and energetic college professor.

Mr. Leitner, 49, also a professor, hates seeing Nora’s youth overwhelmed by the illness. “Her childhood is defined by this,” he said, “and it’s really sad.”

The Leitners’ experience is typical, Dr. Devinsky said, adding, “It involves everybody to an incredible degree.”

Looking back, the Leitners think Nora had her first seizure in utero two weeks before she was born. Her first recognized seizure happened when she was 4 ½ months old; a month later, she had five seizures in three days. The formal diagnosis came after her first birthday. Dr. Christina Bergqvist, Nora’s neurologist at Children’s Hospital of Philadelphia, said Nora’s M.R.I. shows visible abnormalities in her brain.

The critical struggle in Nora’s care, as for many children with epilepsy, has been to safeguard her cognitive life. Children with intractable epilepsy display a wide range of abilities, from normal functioning to profound retardation. Nora falls somewhere in the mid-high range. Her speech is extremely slow and soft; she often frowns before answering a question, as if struggling to formulate her response. While her answers are usually accurate, her response time is slow, and she sometimes is not aware that she has been asked a question at all.

Yet beneath the layers of difficulty is a sharp mind, an avid reader in a home filled with books, a child whose favorite subject is science and who can discuss ancient Egyptian culture and identify common vertebrates and invertebrates. Despite her halting speech, she tells a reporter that her chore in the house is looking after the recyclable cans and bottles.

“Nora’s responsible for taking those out,” Ms. Leitner said. Her daughter added dryly, “Yeah, without asking.”

That child, and those submerged abilities, were what Ms. Leitner first saw clearly in 2000, when Nora went off a medication called Depakote. The side effects of anticonvulsant medications are often as disabling as seizures themselves, and Nora’s life on medication had begun at 6 months, when her doctor prescribed phenobarbital, a drug that causes cognitive and language delays.

“We were beside ourselves,” said Ms. Leitner, who teaches psychology at University of Maryland University College and who suddenly found herself putting her expertise to work for her own child. “One of my biggest concerns was, do we medicate her? I knew that the drugs they used to treat epilepsy were all cognitive depressants.”

It is the Solomon’s choice faced by parents of children with intractable epilepsy: risk the damage wrought by seizures, or the side effects of medication? Over the next five years Nora tried eight or nine medications, and in 2000, at age 6, she entered first grade taking two anticonvulsants, Depakote and Topamax, every day.

Then she caught a break. The Depakote made her so sleepy that Ms. Leitner rescheduled the lunchtime dose so she would be alert at school. After a few months, they dropped the midday dose entirely. Suddenly, a new Nora surfaced.

“It was a phenomenal change,” Ms. Leitner said. “She was awake, alert. We took away another dose; then that summer, we took the last one away and she started seizing again. But she had started talking, reading, everything she hadn’t done before; she never talked in full sentences until she was 6 years old. I wasn’t willing to go back.”

In October 2002, Nora went on the ketogenic diet. It is like the Atkins diet in overdrive: it mandates vast quantities of fats, like oil, which Nora drank from a small bottle, and almost no carbohydrates. Every morsel is weighed, and no deviations are allowed. Within weeks, Ms. Leitner said, there were pronounced changes in Nora’s abilities and attention span. Over the next 21 months, she had only two seizures.

But in the summer and fall of 2004, there were three more, and that October, while swimming at school, Nora had a seizure and nearly drowned. Within a year, she had begun to have a seizure or two a month as she entered puberty. In March 2006 she had a vagus nerve stimulator implanted, but her seizures became so frequent that the Leitners had the device turned off two months later. Since then, she has often had more than one seizure a day.

Families of children with intractable epilepsy often have a hard time getting the constellation of services they need. “Throughout the years, we’ve had to find things out for ourselves,” Ms. Leitner said. “Nobody ever said to us, ‘Nora needs speech therapy,’ or ‘Nora should see a developmental pediatrician.’ ”

Even finding the right school was a trial. The Leitners now drive Nora 30 miles each way to the Orchard Friends School in Moorestown, N.J., and they will begin home-schooling her in the fall.

Social isolation is a persistent issue. Schools may not want to include students with epilepsy on field trips; peers may not invite them for sleepovers. “A lot of it just seems to be awareness issues,” Mr. Leitner said. “Most people have never seen somebody have a seizure.”

Dr. Bergqvist agreed. “It is frightening to see a child seize,” she said. “And then based on that fright, people decide, ‘I can’t deal with that child.’ People still think it’s contagious.”

In late November 2006, the Leitners agreed to give the vagus nerve stimulator another try, but it made no difference in Nora’s seizure control. In fact, in the first half of 2007, her condition deteriorated to the point at which, on two separate days that summer, she had 19 full-blown seizures each day.

A few months earlier, in March 2007, Dr. Bergqvist had been surprised to discover that a genetic test on Nora came back positive for a mutation called SCN1A, which is linked to a variety of severe seizure disorders.

In August, Nora began taking stiripentol, a high-priced medication that has been approved in Europe, but not the United States, to treat patients with SCN1A mutations. (It is not covered by insurance plans in the United States.) In combination with two other medications, it brought her seizures completely under control at first. They have come and gone since, as Dr. Bergqvist and Ms. Leitner try to pin down the right combination of doses.

Nora typically feels best in the brief period immediately after a change in treatment, but the improvement is always fleeting.

“When we make a change to the VNS settings, she is fabulous for about two to four hours — really alert and awake and bright and on target, all there,” Ms. Leitner said. “And when we introduce a new drug, or when we change the dosing on a drug, she’ll go seizure-free for about two weeks. And then it’s like the brain finds a way of getting around the drug.”

So far, the new trio of medications has offered Nora a better level of control than almost any other treatment that the Leitners have tried over the years. In addition, last fall Nora went off the ketogenic diet and onto a less restrictive low-glycemic-index diet, freeing the Leitners to go to restaurants and travel as a family.

In the midst of all of this, Nora is having as typical a 13-year-old life as she can. She loves to swim and has taken gymnastics, piano lessons, tae kwon do, and hip-hop dance classes. Her bedroom brims with books, dolls and stuffed animals, and she eagerly shows off her huge repertoire of knock-knock jokes. She dotes on the family dog, Franklin, and the cat, Lily.

Dr. Bergqvist says Nora could experience a remission after she goes through puberty. Until then, the choices continue. But Ms. Leitner acknowledged that their approach may have to change. “At a certain point, I’m going to have to stop worrying about her ability to think and go for the seizure control,” she said.

But she knows that it will not be easy. “If she had always been the way she was before the diet, I probably wouldn’t be as dramatic about this as I am,” she said. “But I’ve seen what she can do.”

Dr. Devinsky says that families like the Leitners, torn as they may be over the correct path to take, are on the right track.

“If there’s a message, it’s not to give up,” he said. “They should do everything possible to maximize the quality of life of their child, but at the same time, never, ever give up. Because there will be other things coming down the pike.”

Getting the Most Out of Vegetables

By now, most people know they should be eating more vegetables. But are there ways to get more from the vegetables you already eat?

A growing body of research shows that when it comes to vegetables, it’s not only how much we eat, but how we prepare them, that influences the amount of phytochemicals, vitamins and other nutrients that enter our body.

The benefits are significant. Numerous studies show that people who consume lots of vegetables have lower rates of heart disease, hypertension, diabetes, eye problems and even cancer. The latest dietary guidelines call for 5 to 13 servings — that is two and a half to six and a half cups a day. For a person who maintains her weight on a 2,000-calorie-a-day diet, this translates into nine servings, or four and a half cups a day, according to the Harvard School of Public Health. But how should they be served?

Surprisingly, raw and plain vegetables are not always best. In The British Journal of Nutrition next month, researchers will report a study involving 198 Germans who strictly adhered to a raw food diet, meaning that 95 percent of their total food intake came from raw food. They had normal levels of vitamin A and relatively high levels of beta carotene.

But they fell short when it came to lycopene, a carotenoid found in tomatoes and other red-pigmented vegetables that is one of the most potent antioxidants. Nearly 80 percent of them had plasma lycopene levels below average.

“There is a misperception that raw foods are always going to be better,” says Steven K. Clinton, a nutrition researcher and professor of internal medicine in the medical oncology division at Ohio State University. “For fruits and vegetables, a lot of times a little bit of cooking and a little bit of processing actually can be helpful.”

The amount and type of nutrients that eventually end up in the vegetables are affected by a number of factors before they reach the plate, including where and how they were grown, processed and stored before being bought. Then, it’s up to you. No single cooking or preparation method is best. Water-soluble nutrients like vitamins C and B and a group of nutrients called polyphenolics are often lost in processing. For instance, studies show that after six months, frozen cherries have lost as much as 50 percent of anthocyanins, the healthful compounds found in the pigment of red and blue fruits and vegetables. Fresh spinach loses 64 percent of its vitamin C after cooking. Canned peas and carrots lose 85 percent to 95 percent of their vitamin C, according to data compiled by the University of California, Davis.

Fat-soluble compounds like vitamins A, D, E and K and the antioxidant compounds called carotenoids are less likely to leach out in water. Cooking also breaks down the thick cell walls of plants, releasing the contents for the body to use. That is why processed tomato products have higher lycopene content than fresh tomatoes.

In January, a report in The Journal of Agriculture and Food Chemistry concluded that over all, boiling was better for carrots, zucchini and broccoli than steaming, frying or serving them raw. Frying was by far the worst..

Still, there were tradeoffs. Boiling carrots, for instance, significantly increased measurable carotenoid levels, but resulted in the complete loss of polyphenols compared with raw carrots.

That report did not look at the effects of microwaving, but a March 2007 study in The Journal of Food Science looked at the effects of boiling, steaming, microwaving and pressure cooking on the nutrients in broccoli. Steaming and boiling caused a 22 percent to 34 percent loss of vitamin C. Microwaved and pressure-cooked vegetables retained 90 percent of their vitamin C.

What accompanies the vegetables can also be important. Studies at Ohio State measured blood levels of subjects who ate servings of salsa and salads. When the salsa or salad was served with fat-rich avocados or full-fat salad dressing, the diners absorbed as much as 4 times more lycopene, 7 times more lutein and 18 times the beta carotene than those who had their vegetables plain or with low-fat dressing.

Fat can also improve the taste of vegetables, meaning that people will eat more of them. This month, The American Journal of Preventive Medicine reported on 1,500 teenagers interviewed in high school and about four years later on their eating habits. In the teenage years, many factors influenced the intake of fruits and vegetables. By the time the study subjects were 20, the sole factor that influenced fruit and vegetable consumption was taste. Young adults were not eating vegetables simply because they didn’t like the taste.

“Putting on things that make it taste better — spices, a little salt — can enhance your eating experience and make the food taste better, so you’re more likely to eat vegetables more often,” Dr. Clinton said.

Because nutrient content and taste can vary so widely depending on the cooking method and how a vegetable is prepared, the main lesson is to eat a variety of vegetables prepared in a variety of ways.

As Susan B. Roberts, director of the energy metabolism laboratory at the Tufts University Friedman School of Nutrition, put it, “Eating a variety of veggies is especially important so you like them enough to eat more.”

For an All-Organic Formula, Baby, That’s Sweet

Amy Chase started feeding Similac Organic infant formula to her second son, Amos, as soon as he was born in November 2006.

“When I saw the organic at Publix, I bought it, no questions asked,” said Ms. Chase, a self-described “yoga mom” in Atlanta.

Like Ms. Chase, many American parents have rushed to embrace Similac Organic formula, even though it sells for as much as 30 percent more than regular Similac. In 2007, its first full year on sale, it captured 36 percent of the organic formula market, with sales of more than $10 million, according to Kalorama Information, a pharmaceutical-industry research firm. (Similac’s parent company, Abbott Laboratories, does not release sales figures for individual products.)

Parents may be buying it because they believe that organic is healthier, but babies may have a reason of their own for preferring Similac Organic: it is significantly sweeter than other formulas. It is the only major brand of organic formula that is sweetened with cane sugar, or sucrose, which is much sweeter than sugars used in other formulas.

No health problems in babies have been associated with Similac Organic. But to pediatricians, there are risks in giving babies cane sugar: Sucrose can harm tooth enamel faster than other sugars; once babies get used to its sweeter taste, they might resist less sweet formulas or solid foods; and some studies suggest that they might overeat, leading to rapid weight gain in the first year, which is often a statistical predictor of childhood obesity.

Asked about these concerns, Carolyn Valek, a spokeswoman for Abbott Nutrition, the division of Abbott Laboratories that makes Similac Organic, said that sucrose had been approved by the Food and Drug Administration and was considered “safe and well established.” Ms. Valek said that Similac Organic had no more sweetener than other formulas and that prolonged contact with any kind of sugar could cause tooth decay.

In Europe, where sudden increases in childhood obesity are a pressing public health issue, sucrose-sweetened formulas will be banned by the end of 2009, except when ordered by a doctor for babies with severe allergies. The 27 countries of the European Union adopted the new rules according to the recommendations of the group’s Scientific Committee on Food, which found that sucrose provided no particular nutritional advantages, could, in rare cases, bring about a fatal metabolic disorder, and might lead to overfeeding.

The F.D.A., however, which regulates infant formula, does not specify which sugars can be used, as long as they are already classified as safe. Nor does it set the amount of sugar per serving, as it does for fats and proteins.

Still, a number of pediatricians said they were surprised by the choice of sucrose.

“I would be very concerned about this as a pediatrician,” said Dr. Benjamin Caballero, director of the Center for Human Nutrition at the Johns Hopkins Bloomberg School of Public Health and an expert in risk factors for childhood obesity. “The issue is that sweet tastes tend to encourage consumption of excessive amounts,” Dr. Caballero said. Evidence shows that babies and children will always show a preference for the sweetest food available, he said, and they will eat more of it than they would of less-sweet food.

“This is how breakfast cereal manufacturers compete,” he said.

Ms. Valek of Abbot Nutrition said the company did not “optimize for taste” when developing infant formula. “Our primary focus is to support normal growth through optimal nutrition and quality ingredients,” she said.

Organic formula, with sales of about $20 million annually, makes up only a sliver of the $2.5 billion formula market, according to A.C. Nielsen, the market research company. Similac Organic, analysts say, is largely responsible for the nearly tenfold growth in sales of organic formula from 2005 to 2007. According to the federal Department of Agriculture, which regulates organic labeling, a product can be labeled organic when 95 percent of its ingredients are grown without the use of certain pesticides and herbicides.

All infant formulas contain added sugars, which babies need to digest the proteins in cow’s milk or soy. Other organic formulas, like Earth’s Best and Parent’s Choice, use organic lactose as the added sugar. Organic lactose must be extracted from organic milk, the global supplies of which have been severely stretched in the last three years, driving up the price of the lactose.

“The parents in my practice who would use organic formula are the same parents who would be worried about giving sweets to their babies,” said Dr. Jatinder Bhatia, a member of the nutrition committee of the American Academy of Pediatrics. “That organic formula would be sweeter might not be a health risk, but it certainly isn’t what the parents have in mind.”

Kim Kupferman, a technology consultant in San Leandro, Calif., said she tended to trust the organic label. Her 7-month-old daughter, Saige, eats Similac Organic and a few organic solid foods. “But sugar is a concern for us — that’s why we started her on vegetables rather than fruits, so she wouldn’t get used to the sweet taste first.” Ms. Kupferman said, adding that she might re-evaluate her choice of formula.

Many doctors have long believed that all sugars, from raw cane to highly processed high-fructose corn syrup, are nutritionally identical. But others disagree. Ivan de Araujo, a fellow at the John B. Pierce Laboratory at Yale University School of Medicine, a center for sensory research, said scientists were beginning to tease out the differences.

“Recent studies show that animals have a clear preference for sucrose over other sugars,” Dr. Araujo said. And eating sucrose, he said, generates future cravings for sucrose; other sugars tested, like fructose and glucose, do not have the same long-term effect.

However, Gary K. Beauchamp, director of the Monell Chemical Senses Center in Philadelphia, a nonprofit research institute, said there was no solid proof that early exposure to sweetness gave babies a greater taste for sugar later in life. “The taste for sweet may be pegged so high that it can’t go any higher,” Dr. Beauchamp said.

The overall question of whether sweeter foods are more appealing to babies has long since been resolved. “Babies love sweetness, and anyone selling a sweeter formula is going to have an advantage, because it would be harder to switch a baby to another formula once they get used to the taste,” said Dr. William J. Klish, director of the pediatric gastroenterology department at Baylor College of Medicine and a former chairman of the American Academy of Pediatrics’ nutrition committee.

The sweeter taste of Similac Organic was observed by a professional sensory-tasting panel, commissioned by The New York Times to do a blind tasting of eight nationally available formulas, soy and dairy, organic and not. Seven of the formulas were as sweet as unsweetened apple juice, said Gail Civille, the director of Sensory Spectrum, which performed the tests. Ms. Civille said Similac Organic was the sweetest, with “the sweetness of grape juice or Country Time lemonade."

Doctors say that parents need not worry about the precise composition of formula, because the product over all has been proved safe and effective. But many questioned Similac’s choice of cane sugar, which has been gradually disappearing from infant formula since the 1950s.

“The entire enterprise of formula is the attempt is to make it as close as possible to human milk,” Dr. Beauchamp said. “Making sweeter formula so that babies like it more seems to me contrary to the ethos of organic food, as a doctor and as a grandfather.”

For Smokers, Quitting Is Tied to Social Circles

For years, smokers have been exhorted to take the initiative and quit: use a nicotine patch, chew nicotine gum, take a prescription medication that can help, call a help line, just say no. But a new study finds that stopping is seldom an individual decision.

Smokers tend to quit in groups, the study finds, which means smoking cessation programs should work best if they focus on groups rather than individuals. It also means that people may help many more than just themselves by quitting: quitting can have a ripple effect prompting an entire social network to break the habit.

The study, by Dr. Nicholas Christakis of Harvard Medical School and James Fowler of the University of California, San Diego, followed thousands of smokers and nonsmokers for 32 years, from 1971 until 2003, studying them as part of a large network of relatives, co-workers, neighbors, friends and friends of friends.

It was a time when the percentage of adult smokers in the United States fell to 21 percent from 45 percent. As the investigators watched the smokers and their social networks, they saw what they said was a striking effect — smokers had formed little social clusters and, as the years went by, entire clusters of smokers were stopping en masse. So were clusters of clusters that were only loosely connected.

Dr. Christakis described watching the vanishing clusters as like lying on your back in a field, looking up at stars that were burning out. “It’s not like one little star turning off at a time,” he said. “Whole constellations are blinking off at once.”

As cluster after cluster of smokers disappeared, those that remained were pushed to the margins of society, isolated, with fewer friends, fewer social connections. “Smokers used to be the center of the party,” Dr. Fowler said, “but now they’ve become wallflowers.”

“We’ve known smoking was bad for your physical health,” he said. “But this shows it also is bad for your social health.”

Smokers, he said, “are likely to drive friends away.”

Their paper is to be published Thursday in The New England Journal of Medicine.

“There is an essential public health message,” said Richard Suzman, director of the office of behavioral and social research at the National Institute on Aging, which financed the study.

“Obviously, people have to take responsibility for their behavior,” Mr. Suzman said. But a social environment, he added, “can just overpower free will.”

With smoking, that can be a good thing, researchers noted.

But there also is a sad side. As Dr. Steven Schroeder of the University of California, San Francisco, pointed out in an editorial accompanying the paper, “a risk of the marginalization of smoking is that it further isolates the group of people with the highest rate of smoking — persons with mental illness, problems with substance abuse, or both.”

These are people, Dr. Schroeder notes, who already suffer from being stigmatized.

It is not clear how to resolve that problem, Dr. Fowler said. “What we are seeing is that there is a fundamental trade-off to having a campaign to really change people’s behavior,” he said.

Dr. Christakis and Dr. Fowler published a similar study last year on obesity, asking about the rise of a health problem.

The new study also looked at smoking initiation but, because many more adults were stopping smoking than starting in the years of the study, its main focus was on cessation. Still, Dr. Christakis said, smoking initiation followed the same patterns as cessation: people started and stopped smoking in groups.

Such studies of social networks and behavior like smoking are extremely difficult because what is needed is detailed information on people’s behavior and the behavior of their family, their relatives, their neighbors and co-workers, their friends and their friends of friends. Dr. Christakis and Dr. Fowler discovered one data set that had what they needed but, they and others say, there may not be any others.

The data were from the federal Framingham Heart Study. It was initiated after World War II to follow the population of Framingham, Mass., in order to understand the causes and consequences of heart disease. Researchers regularly examined the study participants, weighing them, doing medical exams, asking them whether they smoked. In order to keep track of the subjects over the years, even if they moved away, the investigators asked for the names and contact information of close friends, co-workers and neighbors.

That meant, though, that the data set also contained all the information that would be needed for an analysis of social networks and the spread of obesity or, in this case, for an analysis of social networks and the decline in smoking, Dr. Christakis and Dr. Fowler realized.

The researchers focused on 5,124 people in the Framingham study who had 53,228 friends, relatives and neighbors as part of their social networks.

They noticed that, on average, smokers clustered in groups of three. Over the years, as fewer and fewer Americans smoked, the number of clusters declined but the clusters that remained stayed the same size, which meant that smokers were not stopping smoking one by one. They were stopping in groups.

Education also played a role. Those with more education were more highly influenced by their friends, and their friends were more likely to influence them. And some social contacts were more influential than others. A spouse’s quitting was more powerful than a friend’s, and a friend’s quitting was more powerful than a sibling’s. If someone you name as a friend quits, that has more of an effect than if someone who names you as their friend quits. Co-workers had an influence only in small firms where everyone knew one another. The effects were greater among casual smokers than heavy smokers.

The study and the obesity study that preceded it, said Duncan Watts, principal research scientist at Yahoo! Research in New York, provide a new view of society.

“We tend to think of individuals as atomized units, and we think of policies as good or bad for individuals,” Dr. Watts said. “This reminds us that we are all connected to each other, and when we do something to one person, there are spillover effects.”

And, he added, when the same sort of effects show up in the spread of obesity as in the decline of smoking, that should be a signal.

“Something very powerful is going on here,” Dr. Watts said

Write by: NYTimes