Folic acid is a B vitamin that can help to prevent birth defects. The CDC urges all women who could become pregnant to get 400 micrograms of folic acid a day. Learn how to get enough in your diet.

The FDA is warning consumers not to buy more than 25 different weight-loss pills because they may contain undeclared ingredients that could lead to health risks. See FDA's Questions and Answers for more information.

A new study from the National Institute of Mental Health suggests that a short nap is better for enhancing memory than a couple of cups of coffee.