Health Information Library

It's possible to be allergic to some types of shellfish without reacting to other types. Learn more about this common food allergy.

Learn how this long-lasting skin condition that causes painful, itchy, recurring welts is diagnosed and what treatments may offer relief.

Learn the importance of assertiveness and how to be more assertive.

Learn more about illnesses that can cause upset stomach, vomiting and diarrhea within hours of eating tainted food.

Find out what you can do to treat this flaky skin condition that can cause scaly skin and stubborn, itchy dandruff.

Find out how a mix-up in brain signals can affect your breathing during sleep, and learn how this sleep disorder can be treated.

Alli is an over-the-counter weight-loss pill that keeps your body from absorbing all of the fat in food. Learn about the drug's benefits and side effects.

Stroke rehabilitation is important for recovery after stroke. Learn about the physical, cognitive and other therapies used in stroke rehabilitation.

Learn more about this easily spread disease caused by a parasite.

A general term for lung swelling and irritation, it's often caused by breathing in irritants. The swelling can cause trouble breathing and a dry cough.

Learn about the symptoms, causes and treatment of these potentially lethal infections.

Find out more about this usually harmless, common skin bump in adults.

Caused by spasms of your diaphragm that you can't control, hiccups are usually harmless. Rarely, hiccups may be a sign of an underlying medical problem.

Find out how these tiny insects that feed on blood from the human scalp can spread, along with treatment options.

Learn more about the symptoms and treatment of this heart rhythm disorder, which causes a rapid heart rate.

Learn more about the symptoms, tests and treatments for this infection.

Find out more about the symptoms, diagnosis and treatment of a slower than typical heartbeat.

Managing diabetes can prevent or delay this common diabetes complication that affects the kidneys.

This mental health condition involves ongoing difficulty parting with possessions, leading to severe clutter and a risk to safety.

Learn the signs that point to this common and potentially serious sleep disorder. And find out the treatments that can help you sleep better.