Like a slender, fragile vine made of highly sensitive tissue and a billion neurons, your spinal cord is like a living extension of your brain running through the body. It’s also one of the most ...

This mind-boggling optical illusion can reveal interesting facts about your brain depending on what you see first.

Here are some fun facts about the PNS. 1) You have a monkey inside of you. Your enteric nervous system, which consists of 500 million neurons that control your stomach and intestines, has as many ...