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Can you really be double-jointed?
Can you do creepy, bendy things with your fingers that freak out your friends? You might have been called double-jointed. What's really going on with those joints of yours?
MUSCULOSKELETAL SYSTEM
Bones and muscles -- the musculoskeletal system -- are what make the body move. Learn how every movement of the body is the result of the coordination of bones, muscles, tendons, and ligaments.
How much do you know about the human body?
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Top 10 Biggest BodybuildersHow does a 97-pound weakling become the World's Most Perfectly Developed Man, as Charles Atlas did? Through the sport known as bodybuilding. Here are 10 of the greatest, most well-known bodybuilders to grace the stage. See more »
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Top 10 Ways to Protect Your JointsIf you still want to be spry after a few decades of birthdays have passed, then sit up straight (literally) and pay attention. We've got 10 tips to keep you in action into your sunset years. See more »
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Bone Health and Fracture PreventionMaintaining bone strength is an essential, and often overlooked, element of wellness. Learn how to promote bone health to prevent fractures and serious injury late in life. See more »
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