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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
The Centers for Disease Control and Prevention (CDC) was originally known as the Communicable Disease Center, which was formed to fight malaria. It was originally headquartered in Atlanta, Georgia, since the Southern states faced the worst threat from malaria.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.