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What Happens to Your Body After You Die?

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    Death sucks!
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    But what happens to your body
    after you die is fascinating.
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    So we're going to show you.
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    Don't worry, it won't be gross...much.
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    Once a person's breathing stops,
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    the cells in their body
    stop receiving oxygen,
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    but the cells continue to live
    for several minutes
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    generating carbon dioxide.
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    Carbon dioxide is acidic,
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    and it builds up,
    rupturing sacs inside the cells.
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    These sacs contain enzymes
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    that begin to digest the cells
    from the inside out.
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    This creates a blister-like fluid
    rich in nutrients.
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    After about a week, those nutrients
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    fuel an army of bacteria and fungi
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    that further liquefy organs and muscles.
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    The microbes that attack the tissue
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    produce a bewildering array of
    more than 400 chemicals and gasses.
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    They include Freon. That's right,
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    the coolant found in refrigerators.
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    Benzene, a powerful component in gasoline.
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    Sulfur, which smells
    of swamps and rotten eggs.
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    And the molecule known
    as Carbon Tetrachloride,
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    which was used in fire extinguishers
    and dry cleaning
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    until scientists discovered
    it's highly toxic.
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    At this point,
    there's very little flesh left,
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    and it's consumed by... here it comes...
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    maggots and beetles.
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    Insects leave only bones behind.
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    Over time, the protein
    in bone decomposes too,
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    leaving just the bone mineral
    called hydroxyapatite,
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    which eventually turns to dust.
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    We can take some solace in the fact
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    that all those nutrients and chemicals,
    even the dust,
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    provide vital substances
    that make soils fertile,
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    sprouting plants and other new life
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    after our lives have ended.
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    Ashes to ashes, dust to dust.
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    [Written and narrated by Mark Fischetti]
    [Assistant Editor: Kathryn Free]
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    [Produced, edited &
    animated by Eric R. Olson]
标题:
What Happens to Your Body After You Die?
描述:

Whatever your beliefs, most people seem to agree that the body left behind when we depart this mortal coil is just a heap of bones and flesh. But what happens to those leftovers? Assuming that nature is left to its own devices, our bodies undergo a fairly standard process of decomposition that can take anywhere from two weeks to two years.

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Video Language:
English
Team:
Scientific American
项目:
Instant Egghead
Duration:
02:11

English subtitles

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