Human Variation & Race
1. Heat is an environmental stress that negatively impacts the survival of humans by disturbing homeostasis. Most outdoor people can corporate with the heat while there are others who haven’t been really exposed to the sun, a lack of vitamin D. Many things can happen to you when your in the heat for some time. Heat exhaustion happens when you don’t hydrate yourself and your exposed to the sun for too long. Heat cramps are muscle spasms that result form loss of large amount of salt and water through exercise. The worst that can happen for being exposed to the heat for too long can be skin cancer. 2. Short Term Sweating helps your body to cool off when its too hot. When sweating while exercising, it can be beneficial due to the fact that your pushing your body further. Facultative Vasodilation is something the body adapts to the heat in a facultative way. Blood makes its way to the surface or under the skin so that there will be less heat in the body to maintain ...