Detailed information and illustrations about the two coronary arteries, which supply blood to the heart muscle.

A closer look at the structure of the breast.

If you exercised before pregnancy, you can safely continue exercising. If you were inactive or you have medical complications, talk with your healthcare provider before beginning to exercise.

All tobacco products, from cigarettes to snuff, contain toxins, carcinogens, and nicotine, an addictive substance.

Most people who die by suicide have a mental disorder, most commonly a depressive disorder or a substance abuse disorder.

Uterine fibroids are tumors in a uterus. They are usually not cancer.

Learn about the different types of monitors that let you check your blood sugar level at home.

Gestational diabetes is a type of diabetes that happens during pregnancy. The symptoms of gestational diabetes usually go away after delivery. But sometimes they do not, or you may develop type 2 diabetes later.

Exercise is a common trigger for many people with asthma. This is called exercise-induced bronchoconstriction or EIB. But living with EIB doesn't mean you need to give up exercise.

Breast cancer is one of the most common types of cancer in women in the U.S. Once breast cancer occurs, cancer cells can spread to other parts of the body, making it life-threatening. The good news is that breast cancer is often found early, before it has spread.