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Author Question: Pain is classified as chronic when it lasts A) six weeks or more. B) two months or more. C) six ... (Read 33 times) |
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.
The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.