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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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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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It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.
Several common functional groups in a single biomolecule
The Distribution of Dominant and Minority Groups
Blood Groups and Blood Types
An educational institution has total direct labor and material costs of $1964 per student. Its ...
The charge for telephone calls T is partly constant and partly varies with the number N of ...
How mitosis maintains the chromosome number.