Final answer:
Taking a cool shower is not an automatic method the body uses to regulate homeostasis; instead, the body automatically regulates homeostasis through sweating, shivering, and blood flow alterations
Step-by-step explanation:
The method that is NOT an automatic way your body uses to regulate homeostasis is taking a cool shower. The body's innate methods to maintain homeostasis include sweating, shivering, and changing the flow of blood. When it's hot, the sweat glands secrete fluid to cool the body through evaporation, and blood vessels near the skin surface dilate to increase blood flow and heat dissipation. Conversely, when it's cold, blood vessels constrict to conserve heat, and shivering occurs, which is the involuntary contraction of muscles that generates heat to warm the body. Taking a cool shower is an external method a person might use to cool down but is not an automatic physiological process.