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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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.