Biology/Life

Find out the answer to why bug bites itch.  Did you know that most itching bites are all in the head?

Why do feet smell?  Why do some feet have strange food odors?  This video does a good job of explaining how bacteria on your body produce those smells.

You don't have to be on drugs or mentally ill, in order to hallucinate.  This video discusses the science behind hallucinations.

Find out why and how people get motion sickness.

This video explains how swallowed air becomes a burp and sometimes a smelly fart.  It also describes why those two bodily functions can smell.

Eyeball floaters are what you see sometimes floating across your vision when looking at something bright.  This video explains what those are.

Check out this video that will give you the ins and outs of lactose and lactate.  The video discusses what it takes for a human to digest milk and the history of lactose intolerance.

Many people really only know of one kind of sphincter, called the sphincter, but did you know that your body has many of them.  Muscles that control the flow.  This video discusses those as well as animal oddities in regards to sphincters.  WARNING:  The video does have a diagram of a male prosthetic sphincter that helps control the flow of urine.

There are many misconceptions about evolution.  One of the largest misconceptions is that we evolved directly from an ape-like creature.  This video does an excellent job of talking about evolutionary and genetic change and adaptations.

Is it possible to be really scared to death?  The answer is "Yes!"  This video discusses how heart failure can occur and other reasons for being scared to death.