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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.
Did you know?
Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.