a few trillion microbes, and as many as 37 trillion cells.

And while death is often thought of as

the end of the line for your self,

your body still has a long way to go.

It doesn't take long before your body

starts to lose what makes you you.

Just a few minutes after death,

one of the first things to go is your brain.

You see, when your heart stops beating,

it halts blood flow, which is supposed to transport

oxygen to your organs and tissues.

So without blood, the most active,

oxygen-guzzling organs and tissues go first.

And the results are...moist.

Because the cells that make up those organs and tissues

are 70% water.

Without oxygen to keep them alive,

the cells self-destruct,

spilling all that fluid onto the coffin floor.

By that night, an even more troubling process begins

in the gut.

Your dying immune system can no longer contain

the trillions of hungry microbes that normally

help digest the food you eat.

So they escape.

First, they travel from the lower intestines

through your tissues, veins, and arteries.

Within hours, they reach your liver and gallbladder,

which contain a yellow-green bile meant for

breaking down fat when you're alive.

But after the microbes are through eating those organs,

that bile starts to flood the body,

staining it a yellow-green.

From about day two to four, the microbes are everywhere.

And they're producing toxic gases,

like ammonia and hydrogen sulfide,

which will expand and cause your body

to not only bloat, but stink.

After three or four months,

your yellow-green complexion has turned brownish-black

because your blood vessels have deteriorated

to the point that the iron inside them spills out,

becoming brownish-black as it oxidizes.

Also around this time,

the molecular structures that

hold your cells together break away,

so your tissues collapse into a watery mush.

And in a little over a year,

your cotton clothes disintegrate,

as acidic body fluids and toxins break them down.

Only the nylon seams and waistband survive.

At this point, nothing dramatic happens for a while.

But by a decade in, given enough moisture,

the wet, low-oxygen environment

sets off a chemical reaction

that turns the fat in your thighs and butt

to a soap-like substance called grave wax.

On the other hand, drier conditions lead to mummification.

That's right, you can mummify naturally.

No wrappings, chemicals,

or intimidating instruments required.

Because throughout this entire decomposition process,

water is evaporating through the thin skin

on your ears, nose, and eyelids, causing them to dry

out and turn black, aka mummify.

By 50 years in, your tissues will have liquefied

and disappeared, leaving behind mummified skin and tendons.

Eventually these too will disintegrate,

and after 80 years in that coffin,

your bones will crack as the soft collagen

inside them deteriorates,

leaving nothing but the brittle mineral frame behind.

But even that shell won't last forever.

A century in, the last of your bones

will have collapsed into dust.

And only the most durable part of your body,

your teeth, will remain.

Teeth, grave wax, and some nylon threads.