Monday, October 12, 2009

Interesting Question.?

I understand that the temperature of the human body is normally about 98 degress fahrenheit. I therefore speculated that humans would be in total equilibrium if the outdoor temperature were 98 degress fahrenheit. However, I (and I am guessing others do too) find myself sweating and overheated when the temperature is 98 degress fahrenheit. Can someone please explain this phenomenon to me?
Answers:
dunnoe.woh
Wow, very interesting question.What you say makes a lot of sense.I don't have an answer,but thanks for making me think.Good One!鈾?
Well you know when u have lots of clothes on during winter and u sweat. well thsoe clothes add up heat to ur body so it sweats to make itself cooler. well ur skin i guess coud still be consitered a cothing and ur shirt and pants ect
When the outside temp is same as the body temp. where does the sweat go ? Its as good as on the skin as it is in the air.
Normal body temperature for an adult human is 98.6 degrees F. If you were acclimated to a 98.6 degree environment, it would feel perfectly comfortable to you. However, you normally don't live in that heat range, so it seems too hot when you occasionally encounter it.
dry heat and humidity if you ever went to a country near the equator you'd know the difference
The Core Tempature of the human body is on average, 98.6d f. But the Skin or outer Extremities differ from the Core Tempature. The Skin wants to cool the Core down when it is Hot, and visa versa for
Cold.
Sweating is as essential to our health as eating and breathing. It accomplishes three important things: rids the body of wastes, regulates the critical temperature of the body at 37 degrees C (98.6 degrees F), and helps keep the skin clean and pliant.Many people, in this sedentary age, simply don't sweat enough, making sweat bathing particularly desirable during these times. Antiperspirants, artificial environments, smog, synthetic clothing, and a physically idle lifestyle all conspire to clog skin pores and inhibit the healthy flow of sweat. These detrimental effects are reversed in a sweat bath.*[*The physiological effects of different sweat baths are not the same, due to variations in heat and humidity. For example, the body sweats more profusely in the hotter (80-100 degree C) and drier (15-25%) atmosphere of the Turkish bath, where moisture on your body is often merely condensation. The length of time spent in the sauna differs from time spent in other types of sweat baths. In this section, results peculiar to the sauna are noted.] When you lounge in a sweat bath, heat sensitive nerve endings produce acetylcholine, a chemical which alerts the 2.3 million sweat glands embedded in the skin. But not all of them respond. The aprocine sweat glands, located in the pubic and arm pit areas, are activated only by emotional stimuli. They carry a faint scent whose purpose is believed to arouse the sex drive.Nevertheless, the eccrine sweat glands, by far the most abundant, respond to heat. During a 15-minute sauna, about one liter of sweat is excreted, depending upon the individual. (Normal daily rate ranges from .5 to 1.5 liters.) Eccrine sweat is clear and odorless; any odor is only created by the presence of bacteria. One of its chief functions is to cool the body by evaporation, although there are also eccrine glands on the palms of your hands and soles of your feet which react to emotional stimuli. Like the baseball batter who wets his hands for a better grip, it is believed these sweat glands were intended to provide us with a good grip on clubs, rocks or vines when our survival often depended upon them. Sweat glands on the feet provided greater traction when it came time to run.A third kind of sweat, called insensible perspiration, originates inside and works its way through blood and other cells to the surface of the skin. Even without a sweat bath, approximately a liter of insensible perspiration evaporates each day.A modified type of sweat gland is the milk-producing mammary gland. Some mothers in Finland believe the sauna encourages the breast's ability to produce milk, although this hasn't been established scientifically.Sweat also has the function of being a judicious garbage collector. During a 15-minute sauna, sweating can perform the heavy metal excretion that would take the kidneys 24 working hours. Ninety-nine percent of what sweat brings to the surface of the skin is water, but the remaining one percent is mostly undesirable wastes. Excessive salt carried by sweat is generally believed to be beneficial for cases of mild hypertension. Some mental hospitals use saunas in their rehabilitation programs to pacify patients.A metabolic by-product, urea, if not disposed of regularly, can cause headaches, nausea and, in extreme cases, vomiting, coma and even death. Sweating is such an effective de-toxifier that some physicians recommend home saunas to supplement kidney machines. Sweat also draws out lactic acid which causes stiff muscles and contributes to general fatigue. Sweat flushes out toxic metals such as copper, lead, zinc and mercury which the body absorbs in polluted
Hmmm were you wearing any clothes? That would cause your body temperature to rise.Were you standing in the sun? Temperatures quoted in the weather etc are always those in the shade. The radiant heat in the sunlight will increase the temperature considerably.Were you doing anything? Muscular activity makes heat, so that would make you warmer.Are you acclimatised to lower temperatures? You're body would then be set up to generate heat biochemically. It takes time to alter that.Hmmm that's all I can think of.
the body is cooling its self down when the temp gets to a point and what kind of clothing you are wearing. if its shorts and a top the body has to keep it cool for when the temp is 100 outside you will sweat the body is a wonder in its self and it protects the vial organs in the body, like the brain, heart, kidneys, so you dont get heat stroke. or hypo therma in the winter.
The same question has occurred to me as well, but I don't think that the direct answer has to do with either clothing or sweat. It seems to me that the reason that 98.6F feels hot to us is that fact that OUR BODIES GENERATE HEAT. So what happens when we are in 98+ degree temperatures is that it becomes more difficult for our body to cool down (i.e., to get rid of the continually generated heat), and so we feel uncomfortably hot -- our bodies' way of telling us that we need to get cooled off in order to keep from overheating.
That is your internal body temperature that keeps your body organs going at their best. Your external body temperature on the outside has to stay at a certain degrees to maintain the internal temperature from getting to high or too low. This is were sweat or chills come in to play. These things are a natural part of the warming up and cooling down system of your body.
The temperature different between room %26 body is important to remove body excess heat that is origenally produced as a result from internal biochemical reaction. Based on that, if you equilized your tempreture with room tempreture, heat transition from body is so slow. In turn, this will increase body temp. more than 98 degrees fahrenhet %26 the body use it mechanisms to gid rid of the excess heat that been produceed (i.e. by sweating, increase respiration, skin vasodilation.)

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