Human Variations & Race
1) Cold - The negative effects of the freezing cold can vary between frostbite and hypothermia. Both are not good and will cause death and other health problems if a human were to end up with either. You know you are in danger when you begin to get body shivers/chills and might not experience piloerection, or may experience vasoconstriction, but not increased thyroxine production. When exposed to extreme cold conditions your body will begin to lose heat and will begin to freeze faster than you can produce essential body heat causing health problems or in some cases death. Eventually, the exposure to the freezing cold will use up all your body's stored energy which leads to it shutting down or struggling to “stay on”. 2a) Short term - A short term adaptation would be your body producing more heat in response to entering a colder climate. If you're from a naturally warmer place and you visit the snow or somewhere else where the climate is different your body will begin to prod...