Patti Neighmond

Many more boys are diagnosed with autism every year than girls. According to the Centers for Disease Control and Prevention, the disorder is 4.5 times more common among boys than girls. Boys appear to be more vulnerable to the disorder, but there is some evidence that the gender gap may not be as wide as it appears.

For more than a decade, the number of women choosing bilateral mastectomy to treat breast cancer has been on the rise. That's the case even for women with early stage breast cancer, cancer in only one breast or non-invasive breast cancer, which has raised concerns that women are getting more surgery than they need. Now a study suggests that trend may be turning around.

Sleek, high-tech wristbands are extremely popular these days, promising to measure heart rate, steps taken during the day, sleep, calories burned and even stress.

This is a story about conflicting medical advice.

One group of doctors, represented by the American College of Obstetricians and Gynecologists, recommends yearly pelvic exams for all women 21 years of age and older, whether they have symptoms of disease or not.

When 18-year-old Hannah Vanderkooy feels extremely tired or anxious, she heads to a spacelike capsule for a nap — during school. Like many teens struggling to get good grades and maybe even a college scholarship, Vanderkooy doesn't get enough sleep.

And she's not alone. Various studies indicate that chronically sleepy and stressed-out teenagers might be the new normal among U.S. adolescents who are competing for grades, colleges and, eventually, jobs.

"Yo-yo dieting" — where people lose weight and gain it back again — doubles the risk of a heart attack, stroke or death in people who already have significant heart disease.

That's the conclusion of an international study published recently in the New England Journal of Medicine.

Four out of five older Americans with hearing loss just ignore it, in part because a hearing aid is an unwelcome sign of aging. But what if hearing aids looked like stylish fashion accessories and could be bought at your local pharmacy like reading glasses?

That's the vision of Kristen "KR" Liu, who's the director of accessibility and advocacy for Doppler Labs, a company marketing one of these devices. She thinks a hearing aid could be "something that's hip and cool and people have multiple pairs and it's fashionable."

One of the most common reasons people go to the doctor is lower back pain, and one of the most common reasons doctors prescribe powerful, addictive narcotics is lower back pain.

Now, research published Tuesday in the Journal of the American Medical Association offers the latest evidence that spinal manipulation can offer a modestly effective alternative.

New research published Monday adds fuel to an ongoing debate in the public health community over whether a few extra pounds are good, or bad, for you.

Earlier research found that being somewhat overweight, but not obese, may result in a longer life.

When Kathleen Muldoon had her second child everything was going smoothly. The delivery was short, the baby's APGAR score was good and he was a healthy weight.

"Everyone said he was amazing," says Muldoon.

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