Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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.

Did you know?

Human kidneys will clean about 1 million gallons of blood in an average lifetime.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

For a complete list of videos, visit our video library