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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
Your heart beats over 36 million times a year.
Did you know?
Human kidneys will clean about 1 million gallons of blood in an average lifetime.