People with "face blindness" can see facial features just fine, but they cannot retain a memory of it. In severe cases, people don't even recognize their own face when they look in the mirror.
It's not the body's strongest muscle, but your tongue works pretty hard. You use it to eat, taste and speak, but how? And if you give a lick about the tongue, why would you mutilate it?
Scientists recently detailed their use of gold nanoparticles to detect breast cancer. Nanoparticles may also form the basis of future cancer treatments. So how does it work?
Gum is the subject of many urban legends with the largest being that it stays in your stomach for seven years. Find out how long gum stays in your system.