Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

Cyanide works by making the human body unable to use oxygen.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

For a complete list of videos, visit our video library