Diet pills, supplements and surgery
Learning Center
Dietary supplements for weight loss
Do dietary supplements deliver on weight-loss claims? Are they safe? Get the facts.
Alli weight-loss pill: Does it work?
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.
Brain AVM (arteriovenous malformation)
Tangled blood vessels in the brain affect typical blood flow in this rare condition. Learn more.
Narcolepsy
Learn more about this sleep disorder that causes periods of involuntary sleep, sleep paralysis and early rapid eye movement (REM) sleep.
Trichotillomania (hair-pulling disorder)
In this mental health condition, people can't resist urges to pull out hair from their body. They do this often. Therapy may help reduce or stop urges.
Keratoconus
When your cornea bulges outward, it can cause blurry vision and make your eyes sensitive to light. Find out about symptoms, causes and treatment for this eye condition.