Why is it that eating spicy, "hot" food causes the same physical reactions as does physical heat?
540853
The spicy food is sensed not just by the taste buds, but also the sensors for pain & irritation.\nFor instance, if accidentally, u touch inside ur nose, or uotside the corner of ur mouth, it will cause burning sensation.
35901
"It’s our body's natural response to environmental or emotional stimulation: the heart beats faster, there may be sweating and occasional light-headedness.  Because of the increased blood flow through the tiny vessels under the skin, the face gets hot and turns scarlet."
708752
Your body is releasing excess heat as a way to regulate body temperature. Skin in any area can become hot to the touch and red as a means to do this, but it's very common on the face and ears. You don't necessarily have a fever, but your body is constantly trying to maintain its normal body temperature.
456537
When I was in the US NAVY aboard the USS ABRAHAM LINCOLN (aircraft carrier) the cooks accidentally spilled an industrial sized container of chili powder into the chili and served it anyway.  You know a ship full of men, no one would admit it was too hot too eat.  So we did.  Boy did we regret it later when we were sitting in the head(bathroom).
780635
The hotter the better.......  I love hot spicy food...  As long as it is not deep fried.......
532719
On body regulates it's heat through persperation.  It's not as much the temperature that makes it feel hot as the humidity.  The higher the humidity the less moisture evaporated from the skin thus reducing the cooling effect.
607735
If heat has been added to an element, it may make a chemical reaction.  If some object's physical properties due to heat or cooling, a chemical reaction may have occurred.  For example, a fire burning wood creates a chemical reaction in the wood.
876859
Heat is actually a feeling and that has something to do with brain.
635838
It is due to your body repsonse against foreign particle. Anything entering in body is foreign particle and body has its immune system to fight against it. the Response of immune cells to foreign particle produces lots of heat in the body termed as fever.
1010654
As far back in American medical history as the Macrobiotic Movement, the concept of a complementarity in the body and foods between an expansive and contractive process, a yin and yang force or quality, or an acidic or alkaline set of realities, has been an accepted reality.  I think it is a fact that all foods have either an alkaline or acidic reaction within the body. The problem is that this is not something that lends itself to empirical testing. One the miracle of digestion begins and "bread becomes blood," there is a profound alchemical transformation of a substances' properties, and this reflects well into the paradoxes you find in acid/alkaline or yin/yang manifestations, e.g. citrus fruit that taste acidic are profoundly alkalinizing to the tissues. Or, milk which tastes sweet soft and alkaline, has a very acidic and hardening effect on the organism. \n\nIn a nut shell, I would assume eating alkaline is predestined in our metabolism, and it is a good idea to exclude the commonly acidic foods that our modern food industry has invented with chemical invention. But the focus shouldn't be on micromanaging numbers...how you feel is essential, and making sure that the intent in the food act is there, that the food is local and organic, and these particularities are far more important than whether one has it the projected number of 7.5 alkalinity, etc.
746094
Certain things give off a different smell when heated but mostly I don't think you can differentiate. The sensation of smell is caused by particles of the thing in question not by chemicals released.
354239
If you are talking about heat energy then it's called an exothermic reaction.\n\nEndothermic reactions are the ones that absorb heat (i.e. they seem to cool things)
883886
There are certain foods out there called "negative-calorie" foods.  These are foods that contain less calories in them than the body burns during the digestion process.  For example, if you eat a carrot with 10 calories, and your body burns 35 calories while digesting it, you just burned 25 calories by eating!  Pretty cool, huh?  You can find a list of these foods on google (type in "negative calorie foods").  Spicy foods also tend to speed up metabolism.  Keep in mind, however, to diet in moderation..any crash diets where you deprive yourself will inevitably backfire.
723247
There are specific neurons specialized for cold sensations- under hot water, there is ectopic activation of these neurons from the physical effects of heat on the synaptic membranes- These are then communicated through the spinal cord and mis-interpreted.
168681
It is the way that your body can take all the different types of foods that we eat and turn them into one type of energy (ATP).  In order for this to happen, we must take in oxygen and we produce carbon dioxide as a waste product.\n\nThey might think it's cool that we breathe out some of the food that we take in!  I show this by lighting a piece of spagetti on fire (it burns like a candle!) to show that the food has energy.  The Krebs cycle allows us to "burn" our food but we do it by releasing the energy in small pieces so that we don't heat release the energy all at once.\n\nIt is a cycle, but that is probably too hard to explain without knowledge of atoms and molecules.
305533
there is no relation between the two...\n\nwhile u exercising, your muscles will work and increases the body temperature ( you know how ?? ).  \nwhenever you work/exercise, it uses the calories ( from carbohydrates/fat) and burn them. in this burning process heat will be produced. Due to this your inner body temperature increase than the outer body temperature...then it causes for sweat.\n\nIn second case, in hot weather your body temp rises ( not due to burning of calories)... so here you sweat..\n\nSo due to hot weather we don't burn calories.  ( very few ..negligible comparing to exercise )
1021608
yes, and also the water..possibly lowered your resistance to illness. plus heat fever happens...drink more water.