system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If humans are warm-blooded, why can we sit comfortably in hot tubs, but cold-blooded lizards, snakes, turtles, and alligators can't?

From what I understand, cold blooded animals like warm environments because it heats them internally.

So then, why can warm blooded humans sit comfortably in a hot tub, whereas cold blooded lizards, snakes, alligators, and turtles can’t without overheating?
gpt
"Warm-blooded" means "able to control their own body temperature".  You can sit in a hot tub because you can control your own body temperature and help make sure you don't overheat.

"Cold-blooded" means "can't control their own body temperature".  A cold-blooded animal in a hot tub would just continue to get warmer and warmer until their body temperature was the same as the hot tub temperature, which may very well be fatal.