Weight machine exercises
Learning Center
Video: Lying hamstring curl with weight machine
The hamstring curl exercise targets the back of the thigh. See how it's done.
Video: Biceps curl with weight machine
The biceps curl builds strength in the upper arm. See how it's done.
Video: Triceps extension with weight machine
The triceps extension targets the back of the upper arm. See how it's done.
Video: Ankle sprain
How do you get an ankle sprain? Watch this video and find out.
Video: How irritable bowel syndrome affects you
Watch this irritable bowel syndrome video to learn how IBS can affect you.
Video: What happens during obstructive sleep apnea?
Sleep apnea — Watch this video to see how snoring and obstructive sleep apnea occur.
Kids and exercise: How much activity do they need?
You know your kids should exercise, but how much? Find out and get ideas for helping children and adolescents be more physically active.
Body lice
Body lice are tiny insects that live in your clothing and feed on your blood. Find out how to treat and prevent this itchy nuisance of a bug.
Mononucleosis
Learn about the symptoms and treatment of the kissing disease in adults and children.
Strep throat
Learn more about the symptoms, causes and treatment of this throat bacterial infection in children and adults.
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