The average adult has about 21 square feet of skin.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
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Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
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It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.
Technique of Light Palpation
The Sun in false-color ultraviolet image
Examples of three types of joints found in the body.
Blue light is scattered more than other wavelengths by the gases in the atmosphere, giving the Earth
Fun with light refraction
Bacteria in your GI tract synthesize one form of vitamin K