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Author Question: What effect does the sympathetic nervous system have on the heart? A) It increases the speed and ... (Read 27 times) |
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If you could remove all of your skin, it would weigh up to 5 pounds.
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Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
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Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
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In 1864, the first barbiturate (barbituric acid) was synthesized.