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Comment by polycancel | Hacker News Reader

As someone who grew up with AC, I was one time in Brazil and got stuck in a place without AC. Needless to say the first few nights was hell. I just couldn't follow asleep. However after few days, my body just adjust to the local temperature, and really enjoyed it. In fact, going into mall with AC just feels too cold for me then. Of course there is a limit to what our body can endure, but there is something to be said about exposing and adapting our body to the natural elements instead of just adjusting the environment to make what is comfortable to our body.

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I live in a place with very little need for heating and air conditioning. If I don't do anything, indoor temperatures vary between 17°C and 27°C around the year. I've noticed that I prefer 24–25°C during the day in the summer and 21–22°C in the winter, and a bit less when I'm sleeping.

When I travel around the US, most places are too cold for my taste. Conference rooms are the worst, as I can't adjust the temperature myself and I often spend hours in them without much physical activity. I guess many Americans don't acclimatize to warmer temperatures, because their summers are uncomfortably hot.

And when I return from long hikes high up in the mountains, even that 17°C feels too hot for sleeping for a few days.

> I guess many Americans don't acclimatize to warmer temperatures, because their summers are uncomfortably hot.

Yeah. It's very weird/funny hearing how 100 F is almost death to them, when it's really not that bad. Most people where I'm from are practicing sports at 100 F.

This is so humidity dependent though, so it's probably more useful to speak in terms of the heat index.

I didn't mind 100F too much when I lived in Salt Lake; it was hot but that's what drinking lots of water was for. In Pittsburgh, 93F and higher make me want to curl into a ball and hug an air conditioner. In the 90s the heat index reaches as high as 110 here. Ick.

Yep. In dry Yerevan, 35 C feels absolutely survivable even to my Arctic ass. 25 C in damp Moscow though? A disaster unless there's AC ready.

It is also the question of efficiency and productivity in the most generic sense. You've got only one life, and there is no point in spending it uncomfortably sweating while say loosing your focus given that AC is really cheap, whether it is energy required or the hardware itself.

That’s kind of the point. It’s not uncomfortable to live life in those temperatures if you’re acclimatized. Maybe something you bring up in small talk (“what about this heat?”) but never something that’ll change how you live.

Plus indoor spaces never get that hot due to shade and passive cooling. A little breeze and 90 F is just fine.

While you can live through 90F, your productivity for work or house chores will really suffer - that is why south countries have siestas as it is better to just lay down and relax and possibly sleep through it than trying to do anything else. And don't forget pets - they don't sweat, so it is very hard on them.

There's certainly a level of acclimation but if it were truly as enjoyable people wouldn't bother with cooling/heating buildings except in the most hostile environments.

I live in Phoenix. Very well adjusted to the temperature here. You sweat more. It was 75 yesterday, walked outside, started to shiver. Weird.

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