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Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.