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Did you know?
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
Did you know?
The horizontal fraction bar was introduced by the Arabs.
Did you know?
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.