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Did you know?
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
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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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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
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Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.
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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.