How does the body primarily regulate temperature?

The body primarily regulates temperature through sweat and blood flow. This process is known as thermoregulation, which is essential for maintaining a stable internal environment despite external temperature changes. When the body temperature rises, sweat glands produce sweat that evaporates from the skin's surface, cooling the body down. Additionally, blood vessels near the surface of the skin dilate, allowing more blood to flow and releasing excess heat.

During colder conditions, the opposite occurs: blood vessels constrict to conserve heat, and sweating decreases to prevent further heat loss. This dynamic adjustment involving sweat production and blood flow is critical for maintaining homeostasis, ensuring that the body's core temperature remains within a healthy range.