Sugar consumption among adolescents has nearly doubled since the 1970s.
It probably goes without saying: the dentist's chair isn't the most popular place to visit. But going the dentist may soon be a very different experience. As Lauren Sommer reports, researchers at the University of California San Francisco are developing new technology that may make dentists' drills less common.
If you plan to take any long plane trips this holiday season, here are a few things to keep in mind: jet lag, scientists say, often hits women harder than men. The direction you're flying matters, too. Jet lag is worse when traveling from west to east. In fact, studies suggests that jet lag can do a lot more than just wear us out
Another promising dietary supplement fails to deliver protection against a target disease, this time Alzheimer's.
US dietary guidelines for sodium intake are not practical for the general population.
As soldiers continue to return from Iraq and Afghanistan, doctors who treat them find themselves at the forefront of scientific research. That's the case at the Veterans Affairs Hospital in Palo Alto, where scientists have made a surprising discovery. Amy Standen reports.
Intensive meditation training increases psychological well-being and telomerase activity in immune cells.
New research from Stanford University suggests that dermatologists must be aware that their recommendations to avoid sun exposure, particularly for patients at high risk of skin cancer, may be inadvertently creating other health problems.
New research from the UC San Francisco Veterans Affairs Medical Center shows that eating high doses of dried plums (prunes) increases bone volume in adult and elderly male mice.
Can brain performance be improved? The $300 million-a-year "brain-fitness" industry is betting that the answer to that question is yes. Some companies say that an 80-year old brain can perform just as well as a 25-year old brain after some specialized video game training. What about crossword puzzles and regular old exercise? QUEST takes a look at the growing brain fitness industry and the science behind it.