ANTH 337 Chapter Notes - Chapter 6: Acclimatization, Hyperthermia, Basal Metabolic Rate
Document Summary
People manage stress from the environment through interplay between out large, muscular, physical selves, thermoregulation, and learned behaviors. Thermoregulation balances heat gain and loss: the impact of cold on everyday human activity. Physical problems begin at air temperatures of 14 to -5 degrees. Fahrenheit finger pain, loss of dexterity, shortness of breath, skin sensitivity, muscle and joint pain. Warm hats, coats, mittens, boots, and well-heated buildings. Even a small amount of deep body cooling may reduce both mental and physical abilities. Older groups will have colder finger temperatures and recover to precooling finger temperatures more slowly than younger groups. Older subjects may have partially lost the ability to shunt warmer arterial blood directly to veins via the arteriovenous anastomosis vasodilation reflex: basically: the vasodilation reflex is slower stopping warmer. Exercising before cold exposure leads to greater deep body temperature blood going directly to veins loss in the cold.
