Human Variation and Race
The definition of homeostasis is the tendency of the body to see and maintain a condition of balance or equilibrium within its internal environment, even when faced with external changes. The effects of cold weather on the human body can be harmful and even deadly. Peripheral vasoconstriction is a process that occurs when your body is subjected to cold weather, the blood vessels in your outer extremities will constrict, thereby preventing blood from reaching these areas. This is your bodies attempt to concentrate your blood in the core of your body to keep your internal core temperature from plummeting. This causes your blood pressure to raise and your heart to work harder, which can be dangerous for someone with a heart condition. The lack of blood flow throughout your body also reduces its ability to fight of colds and other infections as its resources are being used elsewhere in your body. A persons appetite will also not only increase when subjected to cold weather however it can a