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? See more »

Babies have adorable smiles and teeny tiny fingers, but there's a persistent rumor that these new, tiny humans don't have kneecaps. What's the story of a baby's bones? See more »

Unfortunately for him, Humpty Dumpty was not blessed with the human skeletal system. Why can your skeleton do what all the king's horses and all the king's men can't? See more »

In a way, your spine is the keystone that holds your body together. Since it has so many important jobs, it has to develop in exactly the right way. How does this happen? See more »

How 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 »

If 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 »

If you've ever laced your fingers together, turned your palms away from you, bent your fingers back and heard a loud crack or pop, you know what knuckle-popping sounds like. So, what would happen if you popped your knuckles all the time? See more »

Oh, to be a kid again. Plenty of summer vacation, plenty of mud puddles and plenty of osteoblasts? There's a reason your kid can spring back from any injury while you're laid up for weeks. See more »

Maintaining 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 »