Human Variation & Race Blog
1.) Heat, as an environmental stressor, can effect the survival of humans by disturbing homeostasis. Human beings are known to be able to adapt to environmental pressures such as extreme heat and extreme cold. Changes in heat that are extreme can cause humans to do multiple things: brain malfunctions, passing out, skin hives, dehydration, and weakness. These malfunctions can cause individuals to have permanent damage mentally and can cause injury from fainting at random moments. Death by dehydration is a possibility making survival very difficult without access to fluids. Extreme changes in heat causes all of these disturbances in homeostasis making survival difficult within specific conditions. 2.) A short term adaptation to changes in Heat would be sweating or perspiration. This can cause dehydration but will cool down the body enough to maintain homeostasis and give a person enough time to find fluids and shade. This short term adaptation is beneficial because it not only cools of...