sweatology+BH

sweatology Notes ORGANIZE BY CATEGORY PROVIDE JABLONSKI AND CRANDALL LINKS

each person sweats differently but everyone has the same system in their bodies to prevent from over heating

sweat serves as our personal coolant

humans can handle overcooling well, but have a very low tolerance for even overheating. We can handle a 20 degree drop within our bodies but when the temp. goes over 110 degrees, just nearly a dozen degrees away from the normal body temp. we are thought to be close to death.

Our excretory system serves as our air conditioning

"sweat glands evolved as body hair vanished, allowing optimal cooling of the enlarging hominid brain and an active lifestyle even in the blazing sun."

in temperate weather people have no need for sweat. the air absorbs the heat we produce. The air absorbs the heat we produce. But while the body is ecercising the body generate to much heat internally for the air to absorb. When the temperature clibs into the 90's the skin stops letting the heat out of the body and absorbs it instead. The nerves in the skin tell the body to releease sweat to produce evaporation and cooling.

Humidity also increases sweating, b/c it reduces evaporation. Breeze enhances evaporation

dehydration reduces sweating. so does sunburn.

sweat patterns vary depending on the person. Factors: age, sex, genes, weight,and shape.

sweat glands vary from 2-4 million per person "heavy sweaters may have five times the size of the normal sweat gland. Larger gands are sensitive to stimuli and make you sweat more.

inner temperature varies. --> cooler in the morning, warmer in the afternoon, women run 1/2 degree higher after ovulation. during menopause the inner temp. is extreely irregular. You get hot vey quickly. "trigger happy"

at the age of 60.. both sexes sweat less. during heat waves elderly are at a higher risk for heat stroke.

obesity--> carrying more weight generates more heat. But fat insulate the interior from very hot external temperatures. All thogh that are obeses they can nt grow more sweat gland to handle the extra heat load.

frustation generates heat..

less clothig is not always the best way to avoid overheating. the solders who wore less clothing sweated 30 percent more.

frustration generates heat..