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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
There are more bacteria in your mouth than there are people in the world.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.