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Did you know?
The human body produces and destroys 15 million blood cells every second.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.
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Approximately 500,000 babies are born each year in the United States to teenage mothers.
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The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.