Fitness basics
Learning Center
Statin side effects: Weigh the benefits and risks
Statin side effects can be uncomfortable but are rarely dangerous.
Statins: Are these cholesterol-lowering drugs right for you?
Learn more about the risks and benefits of taking cholesterol-lowering medicines before deciding if they're right for you.
Stem cells: What they are and what they do
Get answers about where stem cells come from, why they're important for understanding and treating disease, and how they are used.
Strength training: OK for kids?
It's good for kids to build strength as long as form and safety come first.
Stroke rehabilitation: What to expect as you recover
Stroke rehabilitation is important for recovery after stroke. Learn about the physical, cognitive and other therapies used in stroke rehabilitation.
Sudden death in young people: Heart problems often blamed
Sudden cardiac death in young people is rare. It's not the same as sudden cardiac arrest. Learn about the risk factors and causes and when screening is needed.
Sun damage
See photos of common skin conditions that are caused by too much time in the sun.
Surgery for stress urinary incontinence in women
Learn what's involved in surgery to treat stress urinary incontinence, including risks, benefits and other factors to consider before making a decision.
Symptoms of pregnancy: What happens first
Are you pregnant? Tender breasts, nausea and fatigue are just a few early symptoms of pregnancy. Find out about these and less obvious pregnancy signs.
Teen drug abuse: Help your teen avoid drugs
Want to prevent teen drug abuse? Understand how to talk to your teen about the consequences of using drugs.
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