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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
There are 60,000 miles of blood vessels in every adult human.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
The average office desk has 400 times more bacteria on it than a toilet.
Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.
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