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Death is as natural as birth but held less, the moment of death the brain has an increased activity as its last oxygen is exhausted and darkness arrives. The hormones that regulate the functions of the body are no longer secreted by the brain and although some physical functions are maintained for a few minutes eventually all human functions are maintained and the PostMortem process begins. First in death all the muscles are relaxed you need to burn oxygen so that the energy stays tense, without oxygen there is no tension.

This includes the sphincters of the body reason why death can cause defecation and incontinence, just because the body is medically dead does not mean that everything is. Some cells continue to burn the remaining energy that contributes to what happens after dying. Not to mention the hundred trillion bacteria that live in our gut, in the skin and elsewhere. They have been with us all our lives there is no reason to stop now, on average the human body loses 0.83ºC / h, until reaching the ambient temperature, without the heart beat the blood and fluids you begin the process of lividity, succumbing gravity and Grouping in the lowest points of the body.

In people with fair skin the blood grouping is visible outside the body with a dark blue or purple color, and after a few hours it coagulates so forensics know if a lifeless body has moved, according to a study 63% of People completely close their eyes when they die.

The decomposition begins, the cells are dead and begin to break because of necrosis, without circulation the body can not clean dead cells, as carbon dioxide builds up and the pH of tissues increase the cells weaken And rupture the membranes releasing the inner fluid that causes damage and change the color of the surrounding tissue.

On the second and third day putrefaction begins, oxygen is depleted by microorganisms in respiratory systems and intestinal gas and these begin to spread to other sections of the body. The enzymes in the pancreas begin to target themselves and the intestinal bacteria like it too so that the greenish abdomen.

This is when the smell is absurdly terrible, two chemicals putrescine and cadaverine arise during this interaction and eventually go to the blood vessels, necrosis and bacteria work change the color from green to purple and then to black. The smell will cause more insects to reach the body, worms and bacteria will produce holes in the body which will occur in the first week and release more odors.

These worms can consume 60% of the body in just one week, after the organs and tissues begin to dry this stage takes a year or more depends on the temperature. Once the fluids are mostly dry starts the post-decomposition soft tissues and the organs are dried and consumed but the bones and cartilage are still there, this is when a variety of beetles and flies remain to eat what remains, in the years Later the plants and animals will eat the skeleton and you will become dust.

PS: Of course in modern life we never arrive more than the first few days, embalming helps to replace these processes, everything I mention happens to leave a body lying around.

I hope this information has been useful and instructive, see you soon!

Ref:

http://www.livescience.com/42301-brain-death-body-alive.html

http://www.seeker.com/brain-waves-surge-moments-before-death-1764727850.html?slide=HxSHbw

https://pixabay.com/es/mortalidad-calabera-vanitas-401222/