Are humans endotherms or ectotherms?

Humans are endotherms because they maintain a constant body temperature through internal regulation, regardless of the external environment.

• Endotherms: Animals that generate heat internally and regulate their body temperature (warm-blooded).
• Ectotherms: Animals that depend on external environment for body heat (cold-blooded).

Why Humans are Endotherms

1. Humans maintain ~37°C body temperature.
2. Mechanisms like sweating, shivering, and blood vessel dilation regulate heat.
3. Energy from food is used for heat production.