why humans become cold when they die?

Answer 1

you got the answer already.

Answer 2

oddly enough, the same reason a car engine does. There is no metabolic process being done in a dead person (this is like car pistons creating heat). The body is a very elaborate engine. The dead metabolize no energy. It is cold because when a hot engine stops, the heat it had is dissipated to the surroundings. This final process allows law enforcement specialists (forensics) to estimate a approximate time of death - easily enough thru temperature readings. It would be like running your car for a while, turning it off and returning 45 minutes later to feel it still warm but touchable with the hand.

Also though, if you were to wait and check the temperature of a creature a few days later after a body started breaking down, you would find it warming up again due to chemical reactions and bacterias and such.

Hope all that is understandable and helps u out :)

Answer 3

Heat is not actually a thing. Heat is just a manifestation of energy.

When you say something is hot, that reflects a sensation transmitted from the nerves in your body that you associate with a concept in your mind.

In the physical world, removed from human consciousness, heat is only an expression of the presence of energy.

Which is another point of consideration.

Energy is not actually a thing either. Energy is just the term we use to describe the movement of matter.

You would say there is more energy in gasoline fire than plastic. That is because the alteration of the plastic when it, as we say burns, is so gradual and so slight that it doesn't change the matter much.

When you burn gasoline however, the change in the state of the matter is so great that you are able to move cars with the channeling of that "energy."

A living being has energy. That is the ability to move itself. It has metabolic functions that take certain types of matter and change their state in such a way that they create "energy." That is the ability to move the body.

When a body dies, to say that it is cold is to say that there is no energy in it, or that there is no life force. Essentially the coldness of the body when it dies and the death of the body are one and the same, but we perceive that death through different vehicles of our mind. Death is an idea limited to our mind. Physical death however is something we can perceive through significations, like heat, sound, movement, or the lack thereof of all of these, etc. etc. etc.

The so called absolute zero is the temperature at which all motion stops. That is the total absence of heat, or also called the total absence of energy, or also you could simply say the total absence of movement, which would bring you full circle.

The question and the answer are one and the same.

These terms such as heat and energy that you are using are only conventions that we use to quantify, that is describe in terms of measurement, properties of life and being, so that we can mathematically manipulate these realities for mechanical purposes.

Answer 4

The human body produces it's own heat while everything is working properly. The reason you have a fever, is because the body is increasing that temperature to help eliminate something that is causing illness. When the body dies, it will eventually not be able to sustain that body temperature, therefore the body will eventually become the same temperature as the room.

Answer 5

There is no metabolism to make heat or regulate body temp. The body then cools or heats to the air, water, stuff around it. A cremated body gets real hot. A body left in cold water will cool down.

Answer 6

From birth until death, the body produces metabolic heat. At the time of death, with the cessation of life functions, no more heat is produced, and the body begins a terminal cooling process. This is the basis for using body temperature as a function for calculating time of death.

Answer 7

When they are dead, their heart stops beating, the blood stops circulating, the cells stop metabolising. No metabolism means no heat generated.

If you're asking why people say they feel cold as they are dying, that is a sign of shock.

Answer 8

blink. cuz. when u die, ur body goes into permanent freeze mode and the carcass ends up catching a cold!

kk just kidding. trying to b creative here ^^

ur blood delivers oxygen to ur cells which respires and keep ur body warm. Blood is delivered through the pumping of the heart. And it just so happens that your considered dead when ur heart stops pumping WHICH means, no blood is being delivered. Cells die from lack of oxygen, nothing is respiring, and eventually, the last remaining warmth of ur body disperses into the body's surrounding and wat ur left with is: cold.

Answer 9

Warm-blooded Animals (Homeotherms)
In humans and other mammals, temperature regulation represents the balance between heat production from metabolic sources and heat loss from evaporation (perspiration) and the processes of radiation, convection, and conduction. In a cold environment, body heat is conserved first by constriction of blood vessels near the body surface and later by waves of muscle contractions, or shivering, which serve to increase metabolism. Shivering can result in a maximum fivefold increase in metabolism. Below about 40°F (4°C) a naked person cannot sufficiently increase the metabolic rate to replace heat lost to the environment. Another heat-conserving mechanism, goose bumps, or piloerection, raises the body hairs; although not especially effective in humans, in animals it increases the thickness of the insulating fur or feather layer.

In a warm environment, heat must be dissipated to maintain body temperature. In humans, increased surface blood flow, especially to the limbs, acts to dissipate heat at the surface. At environmental temperatures above 93°F (34°C), or at lower temperatures when metabolism has been increased by work, heat must be lost through the evaporation of the water in sweat. People in active work may lose as much as 4 quarts per hour for short periods. However, when the temperature and humidity are both high, evaporation is slowed, and sweating is not effective. Most mammals do not have sweat glands but keep cool by panting (evaporation through the respiratory tract) and by increased salivation and skin and fur licking.

Temperature regulatory mechanisms act through the autonomic nervous system and are largely controlled by the hypothalamus of the brain, which responds to stimuli from nerve receptors in the skin. Continued exposure to heat or cold results in some slow acclimatization, e.g., more active sweating in response to continued heat and an increase in subcutaneous fat deposits in response to continued cold.

Environmental extremes may result in failure to maintain normal body temperature. In both increased body temperature, or hyperthermia, and decreased body temperature, or hypothermia, death may result (see heat exhaustion). Controlled hypothermia is used in some types of surgery to temporarily decrease the metabolic rate. Fever, caused by a resetting of the temperature regulatory mechanism, is a response to fever-causing, or pyrogenic, substances, such as bacterial endotoxins or leucocyte extracts. The upper limit of body temperature compatible with survival is about 107°F (42°C), while the lower limit varies.

In humans the inner body temperature alternates in daily activity cycles; it is usually lowest in early morning and is slightly higher at the late afternoon peak. In human females there is also a monthly temperature variation related to the ovulatory cycle. In many mammals and birds the body temperature shows more pronounced cyclic variations than in humans. For example, in hibernators the body temperature may lower to only a few degrees above the environmental temperature during the dormant periods; mammalian hibernators reawake spontaneously and in their active period are homeothermic

Answer 10

When you die your stomach stops digesting. When you stop digesting the chemical reaction (which creates heat) ceases to continue. Plus your heart stops pumping blood so there is nothing left to circulate heat.

Answer 11

THE BLOOD PUMPING THRU OUR BODIES KEEPS US WARM, WHEN THE BLOOD IS NO LONGER PUMPING THRU OUR BODIES THE TEMP. GOES DOWN, THIS DOES HOW EVER TAKE SEVERAL HOURS FOR THIS TO HAPPEN, ANY WHERE FROM 4 TO 6 HOURS FOR THE BODY TO COOL DOWN.. IF YOU ARE TALKING ABOUT A BODY, THAT HAD BEEN EMBALMED, ALL THE BLOOD HAS BEEN TAKEN OUT OF THE BODY, AND FLUID HAS BEEN PUT IN, AND THEY APPLY A PUTTY LIKE MAKEUP TO THE BODY TO GIVE IT A LIFE LIKE LOOK, AND THAT IT COOL TO THE TOUCH ALSO.. HOPE I HAVE ANSWERED YOUR QUESTION..