These three respiratory illnesses—and others—share many of the same symptoms.

Influenza is a serious illness that can cause death, and the vaccine is the best way to avoid getting the flu.

Experts recommend no more than two drinks for men or one drink for women per day.

Some studies suggest aspirin therapy may also help lower the risk of colorectal cancer.

People who sit less and do any amount of physical activity gain some health benefits.

Studies have found a link, although how frequent ejaculation may protect against prostate cancer is not well understood.

Weight loss, exercise and a healthy diet are keys to managing type 2 diabetes.

The early cancer is detected, the easier it is to treat.

Excess weight, which is often linked to metabolic abnormalities, can contribute to a wide variety of health problems.

HIV treatment usually requires daily pills, but longer-acting regimens are gaining ground.