Eli5: Why can broken bodies (aka corpses) not be ‘fixed’ like machines?

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If a machine breaks, you can fix it, even if it means replacing a part, and you can do this AFTER it’s stopped working. You can replace a part in a body to, like an organ, but only BEFORE the body stops working. Why is this? What do we lose when we die that cannot be replenished (except in the seconds/minutes after death in certain circumstances)?

In: Biology

7 Answers

Anonymous 0 Comments

Life is a bio-mechanical machine, and current science has a long way to go before we truly understand bio-mechanics. Maybe someday.

There are many stages of death, with the first stage being called Pallor Mortis. Pallor Mortis sets in almost immediately after death. This is when a collapse of the circulatory system happens and blood vessels themselves cannot function anymore.

There are some rare instances of people being reanimated within a few minutes after clinical death, before Pallor Mortis has set in. There are also documented cases of people being brought back from death 40 minutes or more later, but this always involves very cold temperatures such as drowning in cold water. The cold slows down the onset of Pallor Mortis and the body has a better chance of being revived.

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