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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.
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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
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Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.
Deciduous and permanent teeth. (A) The deciduous teeth, with the age of eruption given in months; (B
The Upper Cave at Zhoukoudian yields ages of about 25,000 years for Homo sapiens.
Adults in the middle-aged group (37–42 years) score higher on measures of generativity than either ...
U.S. adults from 25 to 74 years report that the largest proportion of their daily stressors arise ...
Mount Pinatubo caused ~1˚C cooling for up to 5 years
The apples of today are larger and sweeter than their ancestors, thanks to hundreds of years