system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 Why is it that people who are in shape tend to sweat more easily?
gpt
Sweating is a mechanism used to maintain homeostasis by cooling down your blood when youre hot. So a healthier person will have a better adapted and more active "cooling system". Kinda as if your sweat glands were muscles and they had muscle memory. They recognise when you are working hard quicker and know how to produce more sweat. Same goes for vasodilation, the more you work out, the easier and faster you can feel " the pump" from peripheral vasodilation in skeletal muscle.