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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?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
Did you know?
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
Did you know?
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.