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Excessive alcohol use costs the country approximately $235 billion every year.
Blood is approximately twice as thick as water because of the cells and other components found in it.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).