Nancy Shute

Saline nose spray is becoming increasingly popular as a treatment for allergies and sinus problems. And a study suggests the cheap, simple solution helps with severe nosebleeds, too.

Two studies published Tuesday in JAMA, the journal of the American Medical Association, used saline nose spray as a control when testing medications to treat severe nosebleeds caused by a rare genetic condition.

A body mass index under 25 is deemed normal and healthy, and a higher BMI that's "overweight" or "obese" is not. But that might be changing, at least when it comes to risk of death.

The body mass index, or BMI, associated with the lowest risk of death has increased since the 1970s, a study finds, from 23.7, in the "normal" weight category, to 27, which is deemed "overweight."

Immunotherapy tablets are starting to edge out shots as a treatment for allergies. And it looks like the pills can help reduce the frequency of asthma attacks, too.

Scientists reported Tuesday that immunotherapy tablets for dust mite allergy reduced the risk of an attack in people with moderate to severe asthma. The results were published in JAMA, the journal of the American Medical Association.

When it comes to getting old, some of us are a lot better at it than others. If I'm going to live to be 95 I would much prefer to be healthy, cogent and content. So I want to know the secrets of the healthy and very old.

Fortunately, scientists are starting to figure that out, "The good news is that there's a lot we can do about it," says Dr. Luigi Ferrucci, a geriatrician and scientific director at the National Institute on Aging. He wants to see more and more people in that state of "aging grace."

This story was originally published in April 2012.

It all starts with the egg.

In spring, chickens start laying again, bringing a welcome source of protein at winter's end. So it's no surprise that cultures around the world celebrate spring by honoring the egg.

Some traditions are simple, like the red eggs that get baked into Greek Easter breads. Others elevate the egg into an elaborate art, like the heavily jewel-encrusted Faberge eggs that were favored by the Russian czars starting in the 19th century.

Last week, the Centers for Disease Control and Prevention told doctors they should really, really think twice before prescribing opioids for chronic pain.

And now the doctors are telling us that meditation and cognitive behavioral therapy often work better than pain meds and other medical treatments for chronic back pain.

Psychologists disagree on whether expecting your marriage to be a deeply fulfilling relationship makes it more likely that the union will thrive, or that it will doom you to disappointment.

So, psychologists, should we just go ahead and expect the worst after the honeymoon?

Eric O'Grey knew he was in trouble. His weight had ballooned to 320 pounds, and he was spending more than $1,000 a month on medications for high blood pressure, Type 2 diabetes and high cholesterol.

In 2010, a physician told him to buy a funeral plot, because he would need it in five years. He was 51 years old.

We all know ancestors give us our hair color, but the roots of gray hair have been less clear. Is it genetics, or stress?

Marie Antoinette supposedly went completely white the night before they lopped off her head. And our presidents seem to go gray much faster than those of us with less weighty roles.

It turns out you can blame Mom and Dad, at least a bit. Scientists say they've identified the first gene for gray hair.

The earlier a child with autism can be identified and get treatment the better, child development specialists say. So there's been a push to have pediatricians give all toddlers screening tests for autism during well child visits.

But the influential U.S. Preventive Services Task Force said Tuesday that there's not yet enough evidence to show that screening all children delivers measurable benefits, a decision sure to frustrate or anger many in the autism community.

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