If I’m outside and I start to sweat very much then the sun on my sweat heats it up and I feel hotter than before so I wipe it off and feel cooler for awhile- doesn’t water, or sweat, act sort of like a “magnifying glass” that heats up the surface of the skin in the same way that if you wash your car in direct sunlight then it burns off/evaporates which leaves water marks on the car?
In: Biology
sunlight may add a little to the heat of the sweat, but most of that heat is coming from your body. When it evaporates, the physical change of state is fueled mostly by your body heat. This cools you down.
If the relative humidity is high, the rate at which your sweat evaporates lowers and it is not as effective at cooling you down. And you remain gross and soggy vs. gross and dry.
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