Alzheimer's disease affects an estimated 1 in 10 people over age 65. Find in-depth Alzheimer's information ...

Your sleep position can make you more likely to snore, have back pain, or get a good night’s rest. Find out what effects your sleep position may have on your health.

Shin splints are caused by stress on your shinbone and the connective tissues that attach muscles to your bones, causing inflammation and pain in the shins.

Asthma (reactive airway disease) affects an estimated 34 million people in the U.S. Find in-depth asthma information, including treatments, triggers, and prevention.

WebMD's COPD Health Center provides in-depth information on chronic obstructive pulmonary disease including symptoms, causes, treatment options, diagnosis, and tests.

Rare, deadly, and often missed, some skin cancers develop in areas that rarely see the sun. Scientists are still learning about them, but here's what we know.