Fever

Humans have a thermostat in the brain that keeps our body temperature around 36°C. In cold weather, it tells us to generate more heat, while in hot weather, like at the beach in summer, it encourages sweating to cool down.

This thermostat works like an air conditioner, maintaining our body's optimal temperature for peak performance. When our body detects an infection, it raises our temperature—creating a fever. This higher temperature makes it harder for the infecting microorganism to multiply and boosts our immune system's ability to fight off the germ.