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Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.