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Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.
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The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
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Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
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In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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The average office desk has 400 times more bacteria on it than a toilet.