Why does the forehead get especially hot when you have a fever?
396632
When you have a fever or are hot (for example after running or sports), your body tries to regulate itself by letting off that heat. Heat gets transferred from hotter to colder areas. The main colder area in this case is the outside environment.  (if the outside environment is actually hotter, your body temperature will go up since you are the colder environment).\n\nThe amount of transfer of heat is related the surface area that heat is able to be exchanged from one environment to the other. That environment on the body is the skin. Throughout your skin are little blood vessels called capillaries. These capillaries can dilate (get wider) or constrict (get narrower) depending on the situation. The head gets circulated in your body through blood. When that blood reaches these capillaries in the skin, the heat transfers from the body to the surrounding environment - whether it be air or water. \n\nYou note that you are especially hot in the forehead because the forehead is a nice open area of skin - thus a good surface area for the heat exchange to take place. It is also very vascularized - cuts and lacerations on the scalp tend to bleed very heavily - thus more vessels, more heat exchange. It is also a part of the body that is usually exposed to the environment - unlike your torso or abdomen which tends to be covered in clothing. And it is very important to cool down the brain - as it functions poorly when it gets too hot (ie, heat exhaustion, heat stroke, febrile seizures in children).\n\nYour whole body is actually giving off heat though. \n\nWhen you do have a fever, try removing some layers of clothing or blankets/coverings. This will allow the heat to disappate faster instead of being trapped. Use a cool (not cold) cloth or a tepid bath to help with the cooling. Do not put in a cold bath as the coldness will cause the blood vessels to constrict decreasing the amount of heat that can be transferred from the body's core to its periphery. \n\nYou can also take antipyretic (anti-fever) medications such as Tylenol (acetaminophen) or Motrin/Advil (ibuprofen). Follow the proper dosages on the package or as prescribed by your doctor. However, remember this is only in the case of fevers. If there is another cause of your temperature being high (such as running a marathon or standing out in the hot weather when you are not rehydrating properly), then antipyretics will not necessarily work nor are they indicated.
49104
Water is too hot, or you may have bad circulation.
269799
cause ur hot.. i guess
969853
When you sweat your body is trying to cool itself and the sweat creates moisture to cool the skin the blood vessels underneath the skin dialate and release the heat in the blood that then makes your body sweat. When you are cold the blood vessels contrict holding the heat in. and when your hairs stand up that is from the tiny muscles attached conracting, pulling inward helping so heat cant escape, that why you get goosebumps too!
456041
Your body is trying to get rid of excess heat.  It dilates the capilaries in your skin to allow an increased blood flow so that the blood cools faster.\n\nYou probably don't sweat enough, or it's very humid when this happens.
347929
it does, but that is why we sweat to try and keep our temperatures down. and that is why if it gets to hot, and we dont keep ourselves cool, we can get heatstroke and some poeple die
324056
i believe that our heads are the hottest part of our body and if our heads become to hot our body sends us a message that we are over heating. so common sense tells us to cool down.
82360
Yes, it could be a skin infection, called cellulitis. Apart from the redness, does it feel warmer to touch than the normal areas of your skin, and do you have a temperature?
951520
It's not REALLY a fever.  Chances are, you were sleeping under the covers.  They in turn, conserve your body heat so when you wake up, you're hot.  I usually wake up sweating.  Why then is it just your head?  I dunno.  The head is where most of your body heat is lost when it's cold out if you don't wear a hat.  Put on a hat and your toes actually warm up.
472365
you mean like the fact that it sweats when you are hot to cool the body? it is your body's largest organ, and it sheilds the rest of the body from dirt and disease by providing a barrier between them and germs.
1446
definatly extreme heat because we sweat to keep cool and we barly have any hair to keep us warm.
418014
Drops of liquid that form on your skin when you're hot. It's a synonim of Sweat and Perspiration
783377
. usually a fever means that there's a infection! it sounds like a case of the flu,, it is going around at this time and its terrible!!! i just got over it and it had me in bed for a week, see your Dr. they will be able to tell you more and give you a prescription for whatever it is that's causing your fever . hope you feel better soon!!!
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.
586370
You could raise your internal temperature by dressing in heavy clothes, but your internal thermometer will remain normal - and you will sweat in an effort to maintain a normal temp.  \n\nOn the other hand when you are ill your body resets its temperature (thought to be a defensive mechanism to help fight infection several ways).  In that case you can bundle up and sometimes are still feeling chilled.  What happens when you break a fever...you sweat, cooling your body, bringing it back to normal temp.
19379
There are many bloodvessels in our face. This explains not only why our faces can keep warm (blood circulation) but also why we blush.
1021608
yes, and also the water..possibly lowered your resistance to illness. plus heat fever happens...drink more water.