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Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.