system
Given the following post, respond as if you're commenting on Reddit:
human
How does the internal body maintain a temp of 37 (98.6F) degrees Celsius without difficult yet any temperature over, say, ~26 (~80F) degrees Celsius is seemingly hot and causes a sweat (cooling) response in most, despite the internal temperature being much higher?
gpt
Basically, your body is an engine. Our bodily functions produce heat. If we kept all the heat, we'd cook ourselves and die. We need to get rid of the excess heat. In room temperature-ish conditions, enough heat leaves our body to the air without sweat. When the temperature is hotter, less heat is transferred from our skin to the environment (heat flow is proportional to temperature difference). We need a new method to shed the extra heat that's not flowing into the air. The body then sweats, with extra heat being taken away by evaporating water.