Have you ever felt a "runner's high," that relaxing, happy feeling after a bout of exercise? Research shows that it could be an effective treatment for some types of anxiety.

The flu is a very common illness that affects all different types of people. But it may be more dangerous for some.

Exercise can help your body become stronger, faster and more resilient. And a fitter body might mean a fitter mind as people age.

Most women with breast cancer undergo some form of surgery ranging from a lumpectomy to remove the tumor and surrounding tissue to a mastectomy that removes the entire breast. Pain after mastectomies may be the most troubling long-term symptom among breast cancer survivors, according to a recent study.

The expression "To have your heart in your mouth” may have a new meaning. Gum health has been shown to influence heart health, and good oral hygiene may even slow hardening of the arteries.

While physical activity is generally good for the body, vigorous sports activity can be risky for untrained people. The risks for women may be pretty rare, at least where the heart's concerned.

A kidney transplant can give new hope for a healthy life to a patient with severe kidney disease. A new study suggests that getting enough of a crucial vitamin may be essential for maintaining kidney health after a transplant.

Eating trans fat, a type of fat that raises your bad cholesterol, can also raise your risk of heart disease. Because of this, the US Food and Drug Administration (FDA) wants it removed from foods.

Red, running noses and watery eyes are all too common for those living with hay fever allergies. But kids in some states may deal with hay fever more than others.

When a woman is pregnant, the hormones her body makes can increase her risk of experiencing a blood clot. Other factors might increase this risk further.