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Author Question: Recent physiological evidence suggests that a. changes in the functioning of the nervous system ... (Read 49 times) |
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Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
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There are 20 feet of blood vessels in each square inch of human skin.
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The average office desk has 400 times more bacteria on it than a toilet.
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Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.
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Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).