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More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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There are more nerve cells in one human brain than there are stars in the Milky Way.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.
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Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.