Sweatology+Natalie

Sweat is the interior coolant Our bodies can take overcooling but not really overheating • 110 is the highest temperature compatible with Dr. Jablonski • If we didn’t have sweat glands we would still have all of the hair that our ancestors did o “Sweat glands evolved as our body hair vanished”→ allows for optimal cooling temperate weather • “metabolic heat easily moves from blood vessels at the surface of the skin into the surrounding air” exercise • more blood flowing→ muscles generate too much heat • temperature sensing nerves tell the brain to sweat humidity • reduces evaporation o everyone gets sweatier reduction of sweat production • dehydration and sunburn sweat pattern variation • caused by age, sex, genes, weight, shape, nonexercise activity, clothing • the more and the bigger the sweat glands, the more one sweats o nerves are more sensitive everyone has a temperature of 98.6 women • half a degree higher after ovulation • menopause→ nerves are more sensitive and they sweat more men • thermally stable until age 60 o both sexes sweat less→ elderly are more at risk during a heat wave obesity→ Dr. Crandall • fat insulates the interior from high temps outside • also blocks heat transfer from blood to air • more weight→ more metabolic heat→ more sweat differences in sweat rate • any type of movement, anger and frustration generate metabolic heat that turns into sweat clothing • the less clothing you wear, the more you sweat o unprotected skin absorbs more heat from the environment heat acclimation • athletes training in hot weather • process o internal temps climb o sweat a lot o lose a lot of salt o begin to sweat less • skin and internal temps drop→ endurance improves Adam • A robot that sweats and get irritated as much as a human