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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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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

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Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Hyperopia (farsightedness). In the uncorrected top figure, the image would come into focus behind th Hyperopia (farsightedness). In the uncorrected top figure, the image would come into focus behind th
LBJ cultivated the masculine image of a Texas cowboy. Biographers have suggested that Johnson was ... LBJ cultivated the masculine image of a Texas cowboy. Biographers have suggested that Johnson was ...
Bones do not allow the X-ray beam to pass through them, resulting in an image of the bones on the ... Bones do not allow the X-ray beam to pass through them, resulting in an image of the bones on the ...
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Digital illustration of a fish that was believed to have become extinct during the Cretaceous Period Digital illustration of a fish that was believed to have become extinct during the Cretaceous Period
Video: Five phases of cardiac cycle & Atrial contraction

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