if the human body keeps a constant temp why do we feel hot or cold why not feel what our internal temp is.?

Answer 1

its a matter of contrast.
keeping a constant temperature is not an easy job, indeed it is a
matter of life or death.
you feel hot when the surrounding temperature is higher than the body , resulting in overheating of the body because there is no gradient to help release excess heat from the body's metabolism .


you feel cold when the surrounding temperature is lower than the body temperature , which results in all the heat produced in the body being used to maintain the body temperature and prevent it from equalizing with the surrounding temperature,hence the (shaking) which helps make more heat
by burning more of the bodies store of fuel in the muscles.

if the ambient temperature is the same as the body you still
feel hot!
thats because a gradient is necessary to help the body release
excess heat formed during the body's normal functions.

so the ideal temperature(which is also most comfortable)
is a little lower than the body temperature , not so low as to result in excessive heat loss and depleting the body of energy,
but low enough to ensure the release of excess heat from the body preventing damage to the body from heat.

Answer 2

Our body maintains an internal temperature of about 99 degrees Fahrenheit (37 degrees Centigrade). However, our skin-together with our body tells us when we're hot or cold and it's normal temperature is about 91 degrees.

"...the purpose of the skin thermal sensors is to 'sense' any thermal threat from the environment..." says Michel B. Ducharme thermal physiologist of Defense & Civil Institute of Environmental Medicine, Toronto, Ontario. The deep thermal sensors, meanwhile, tell us whether the body temperature is OK.

We sense the surrounding temperature with tiny sensors imbedded in our skin, which are extremely sensitive to changes in temperature. When these sensors register about 91 degrees and our whole body is at a good temperature, we feel comfortable. Higher than that means we're getting too hot.

The hypothalamus (a primitive part of our brain) controls the action, like a furnace controller/thermostat-only much more sophisticated. Signals come in to the hypothalamus from the brain, from deep-body, and skin sensors. The hypothalamus integrates the signals to learn how warm the deep body is and how the body surface is changing: warming or cooling. Then it decides what to do: OK means do nothing; otherwise kick off action to get the body temperature right again.

When the hypothalamus decides to cool the body, we sweat (to cool the skin through evaporation) and our skin blood vessels widen (to bring warm blood to the skin where it can cool).

"If we were feeling the warmth only when the ambient temperature reaches the same value as the deep body temperature, it would be too late and hyperthermia would develop," says Ducharme.

The body temperature would soar and eventually cause brain damage.

Answer 3

Its only the core of the body that is at constant temp, the skin (where you feel cold) is heated or cooled by what is around us.

Answer 4

The human body doesn't keep a constant temperature....

It's supposed to, but sometimes you get a fever.

Humans are most sensitive to external temperature. We feel temperature both outside and in, but in different ways.

Answer 5

because we feel the temperature of things outside our body through special nerve endings in our skin that are specific to fluctuations in external temperatures.