Health

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

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.

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.

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.

Learn about pain and what humans create to numb it.  This video explains how your brain knows when pain has occurred.  It talks about rare cases where humans have lost their ability to feel pain.  Also, learn how medical companies numb pain and some of the new developments out there.

This video answers the misconception that blood is blue when it is in your veins.  This video discusses the different hues of red in humans as well as the different colors of blood found in different animals.  This would be an excellent video to show during your circulatory system unit.

Find out what happens to the body as it lacks water.