Diet pills, supplements and surgery
Learning Center
Narcolepsy
Learn more about this sleep disorder that causes periods of involuntary sleep, sleep paralysis and early rapid eye movement (REM) sleep.
Mayo Clinic Minute: Why concussion screening is important
Concussion screening can help determine when athletes can return to play.
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.
Hoodia: Does this dietary supplement help weight loss?
Hoodia manufacturers claim the supplement controls appetite, but where's the evidence to back up these claims?
Do cortisol blockers aid weight loss?
Cortisol blockers claim to help with weight loss, but do they deliver? The evidence is slim at best.
Dietary supplements for weight loss
Do dietary supplements deliver on weight-loss claims? Are they safe? Get the facts.
Dental braces
Wire-based appliances or clear aligners that orthodontists use to correct crowded and crooked teeth or a misaligned jaw (an overbite or an underbite).
Concussion
This brain injury can cause headaches, dizziness, trouble concentrating and other symptoms that often improve within days to weeks.
Brain AVM (arteriovenous malformation)
Tangled blood vessels in the brain affect typical blood flow in this rare condition. Learn more.
Bitter orange weight-loss supplements: Do they work?
Bitter orange is in some weight-loss supplements. It acts like a stimulant, which sounds promising but has risks.
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