Instead of just giving in to your food cravings, how about nourishing your brain? Take a look at the foods that kick-start your smarts. Here's a hint -- that candy bowl's not going to help.
WHAT'S INSIDE: HUMAN BODY
- Body Parts
- Body Systems
Your appendix is really a pretty mysterious organ. Find out why you have an organ that's not necessary to your survival.
Exoskeletons normally cover insects, not humans. Why would a human ever want one? Is the possibility of an exoskeleton for humans just around the corner?