In-depth

Complications

Erectile dysfunction

Erectile dysfunction (ED) can be the result of physical or psychological causes or both. Discover what causes ED and what treatments are available.

Osteoporosis

Osteoporosis — developing fragile bones with age — threatens the independence of many older people, especially women. Learn how to avoid bone loss and fractures.

Symptoms

Fatigue

Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.

Tests and diagnosis

Genetic testing

Genetic testing is used to detect altered genes that may cause illness or disease. Although genetic testing can offer important health information, it has limitations.

Jul. 10, 2014

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