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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
The average adult has about 21 square feet of skin.