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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
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.
Medication errors are more common among seriously ill patients than with those with minor conditions.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").