why does the human body loose heat?

Question

help

Answer 1

I am an MD. There are actually two answers to this question. The first is the second law of thermodynamics, which is an absolute law of the universe and cannot be broken. It requires that in any conversion of potential energy to useful work, some waste heat must be radiated to the universe at large. This is why you feel hot after running, for instance, due to your requirement to radiate your waste heat to the universe. Your car requires a radiator for exactly the same reason. The other reason is that we mammals are warm blooded, meaning that we decided long ago that our survival would be best served if we maintain a constant internal temperature in order to keep all of our enzymes and other vital chemistries humming along at peak efficiency, even if it means it will be costing us by needing to find extra food to burn in order to maintain this internal temperature. Actually, much of your food energy is "wasted" in this manner, just to maintain your body temperature. Such is evolution.

Answer 2

During the metabolic process (digestion) carbohydrate compounds are broken down by enzymes. Energy is stored in high energy phosphate bonds such as adenosine di-phosphate ADP to adenosine tri-phosphate. Then other enzymes transfer the energy with the final proton acceptor being oxygen. Waste products are carbon dioxide and water. Heat is released during the metabolic process. The body can only handle a small range of heat, and acid-base. There are complex physiologic systems to regulate this. One of these processes involves sweating and heat loss.

Bacterial and viral infections cause the body to overheat. When this happens the proteins in the body begin to denature.

Answer 3

Because it has to have a way to shed heat or the internal balance needed to keep the organs safe would be disrupted and they would get cooked. Almost everything that the body does gives off heat - it's a byproduct of using energy from sugars.

Answer 4

When the surrounding environment is cooler than the body, heat is lost. Heat always spreads itself out to colder areas. If the environment is hotter than the body, heat will flow into it.

Answer 5

The human body generates heat by converting calories. It loses heat so that one doesn't, how shall I put this, die.

Answer 6

As people get older the heat is slowly lost because the youth is no longer there. Sometimes smoking can speed up heat lost. Are bodies are always giving off heat.

Answer 7

Look up entropy. Everything loses or gains heat til it is equal to the sounding atmosphere.

Answer 8

Any object, including people or animals or cars, loose heat to their surroundings if they are hotter than their surroundings.

(Its actually the second law of thermodynamics)

Answer 9

it is a dracula story......the guy instead of sleeping it off in his coffin....had known a pissed-drunker into the night...so instead of sleeping it off in his coffin at dawn, of course...he misstooked the frig for his coffin and he was stoned cold the next night. that is where he got arthritis at the same time, on top of brain damages which became as small as a green pea. On top of that they heated him up, he sparked all over the place all night. which was called ''break-time''. it was sure a hell of a night, of the next day.

Answer 10

So we do not over heat. Our bodies are constantly taking in heat and it has to be expelled so we do not die.