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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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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.
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In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
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The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
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Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
The health history can be gathered from many sources
When the United States gets stuck over a controversial issue—usually something a divided Congress ca
In countries where water can be contaminated, breastfeeding is an important option for the health of ...
Other Professionals in Health Care
Variations Affecting Health Care Among Different Cultures
Standard Precautions for the Care of all Patients in All Health Care Settings