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Author Question: Slow-wave sleep is comprised of ____. a. alpha wave sleep b. stages 1 and 2 c. stages 3 and 4 ... (Read 81 times) |
The average office desk has 400 times more bacteria on it than a toilet.
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.