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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?
About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.
Did you know?
Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.