Biking doesn't build bones

I knew that you needed to jump or have some other impact to build bone strength, but I didn't realize that bicycling can eat away your bones.

Turns out if you do heavy bike rides, the physical exertion drains the minerals from your bones. A high-calcium beverage can stave off the effects. But so can doing things that make your bones thicker, like jumping rope, running or weight training.

Yay, science!