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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?
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Cyanide works by making the human body unable to use oxygen.