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> "Winter" was in quotation marks to indicate that this is the kind of absurdly warm temperature that people from tropical climates would consider to be winter.
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> The thing is, if you're used to a hundred degrees all the time, your blood gets thin, and a drop to 18 C / 64 F truly *is* going to feel cold and perhaps necessitate heavy clothing. If that same person moved to Canada or Finland for about a year, maybe two, he'd become as acclimatized as the locals. Contrarily, if a Canadian or Finland spent a year on the equator, you'd be bundling up at 18 C / 64 F too.

Right. If I go outside in January and it's 50 degrees F, it feels pretty comfortable. In April if I go out and it's 50, it feels cold. It's just what you are used to.

I spent three years in Florida when I was in my teens. Then we moved to Nashville, which has a fairly mild climate, and I nearly froze. The second winter in Nashville I had become acclimated and it wasn't so bad.
Howard