Shivering is a mechanism by which the body generates heat by:

Shivering is a mechanism by which the body generates heat by:

• A. increasing the metabolic rate
• B. decreasing the metabolic rate
• C. increasing skin blood flow only
• D. producing more sweat

Answer: (A)

Shivering generates heat by boosting the body's metabolic activity. The rapid, involuntary muscle contractions use energy from ATP, and much of that energy is released as heat, helping raise body temperature when you’re cold. Lowering metabolic rate would reduce heat production, increasing skin blood flow promotes heat loss to the environment, and sweating cools the body through evaporation rather than producing heat.

Shivering generates heat by boosting the body's metabolic activity. The rapid, involuntary muscle contractions use energy from ATP, and much of that energy is released as heat, helping raise body temperature when you’re cold. Lowering metabolic rate would reduce heat production, increasing skin blood flow promotes heat loss to the environment, and sweating cools the body through evaporation rather than producing heat.