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Did you know?
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.
Did you know?
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.