@actuallyautistic #actuallyautistic Think I’ve finally gotten to the bottom of my heat intolerance. This afternoon I walked outside and said “it’s so nice today!” and my dad responded “what? No it’s not, it’s hot out here”. Little did I realize the humidity is only 42% today. Looks like it’s humidity intolerance more than it is heat intolerance lol. 82°F with no humidity feels like a spring day to me. But 82°F with 65% humidity feels like the surface of the sun.
@chevalier26 @[email protected] That might make sense, water has a much greater heat capacity than air, so 65% humid air would contain more heat than 42% humid air at the same temperature.

I think the water vapor might also increase the thermal conductivity between the humid air and your body. So heat would move faster from the air into your body, thus making it feel warmer at the same temperature.
@chevalier26 @[email protected] Oh, and of course the water vapor will also be exerting a vapor pressure that reduces the rate sweat evaporates on your skin, so it will have less of a cooling effect.
@Strangelet @actuallyautistic Yes! Exactly! It's a combination of the humidity and temperature.