this post was submitted on 25 Jun 2026
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I have a bath every night, whatever the weather.
It sounds counterintuitive but a hot bath at the right time triggers your thermoregulatory system and you'll cool rapidly when you get out. It doesn't last long but I've noticed it.
Apart from that, a 2l frozen water bottle in front of a large fan at bedtime and blackout material on all the bedroom windows throughout the day.
That just sounds like evaporative cooling from your skin drying.
That's the second part of it, but if it was just that putting room temperature water on you would cool you down. Your blood vessels near the skin widen in hot water (vasodilation), and hotter water results in better evaporative cooling once you get out.
That makes sense and I'm too uneducated to know if you're wrong, so I'm gonna accept that.