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Excessive alcohol use costs the country approximately $235 billion every year.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.