Why is the bulk afraid of heat? -Weight-reducing general knowledge

Why is the bulk afraid of heat? -Weight-reducing general knowledge
People's body temperature is that the organism carries on metabolism and requirement of normal life activity, people can be on condition that change in ambient temperature, relative weighing apparatus maintaining the body temperature by internal body heat regulation organization are booked, and can keep higher than the body temperature of the ambient temperature, in order to meet the change of the ambient temperature. The change two dynamic equilibrium of course realize through produce hot and dispel the heat.People's body temperature did not go out one " The stove fire " ,By " fire " Produce heat is hot to produce, send out constantly even constantly. If a person's body temperature can not be distributed, the body temperature will be higher and higher, in this way are not people burnouted by the fire? Actually this is not so. People every day through breathing,it defecate, urinating, sweat,etc. last heat a large amount of, just keep the temperature of this health balanced.During one day and night, the person's body temperature presents the cyclical fluctuation, the body temperature is the lowest at 2- 6 o'clock in the early morning, it is the highest at 1- 6 o'clock in the afternoon, but the fluctuation of the daily temperature does not generally exceed 1 . Excited, nervous, situation of eating etc., the body temperature slightly rises; Use narcotic drug, resisting and fainting from fear the body temperature of medicine, neonate, the elderly will change low. In the cold environment, because the skin blood vessel shrinks, the blood flow volume of skin is reduced, it will be thereupon reducing that the cover is warm, the hot lost reduction of body. On the contrary, in hot summer, the skin blood vessel is expanded, the blood flow volume of skin increases, so the cover is warm to rises, dispel the heat and increase. Then, why is the bulk afraid of the hot woolen cloth?Originally, there was protective screen (fat) dispelling the heat from level to level under the bulk's skin ,Include moisture content little in the fat, have less blood vessels either, easy to conduct heat, internal heat come loose, come out, so, it is hot, the asthma that the overweight person will think Xu Xu, a mouth breathing, except that some heat that the ones that borrow the lung vomit and receive function scatteredly, because can not meet physiology's needs, so fat people are especially afraid of heat.Perhaps will someone say, I namely neither fat nor thin, why can often feel the finger is cool? This is because every position temperature difference of surface of people's body is relatively large. Determine skin warm foot 27 , hand leather temperature 30 , the truck is 32 when for 23 environment, the forehead is 33 - 34 , the skin of tip of four limbs is the lowest in temperature, close to the truck, the higher the head temperature is. If measure it accurately, the temperature of the liver, for about 38 , whole body is the highest. The brain is produced hotly more, the temperature is close to 38 too, so, by the look of angle that the body temperature changes, it is unfavorable to people's health to be fat.

|