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In the movie "21 grams", it was said that one loses 21 grams of his/her weight exactly in the moment of death.

Is this true?

Is this amount of weight loss (21 grams) independent of person's physics, gender, etc?

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    'Do we lose 7 pounds when we die' is not really the same question as this. For a start, the amounts are vastly different, and also the stipulation of this question that it should happen at the moment we die. FWIW, the answer is almost certainly no. – Owen C. Jones Aug 1 '14 at 11:22
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    @Owen both questions are about what happen "when a person dies", not later on. The answer in the other question addresses the 21g amount as well. – user5582 Aug 1 '14 at 15:30
  • 21g the instant you die is the 'canonical' figure. The 7 pounds version has been twisted along the way. – Oddthinking Aug 2 '14 at 5:44