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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
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The human body produces and destroys 15 million blood cells every second.
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Cyanide works by making the human body unable to use oxygen.
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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.