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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.