Something crazy I've experience is when I swam in an outdoors pool every morning early for a while. This involves several temperature shocks, like jumping into the shower (hot), then walking from the shower to the pool (cold), then jumping into the pool (very cold initially, then ok), then walking back to the shower then showering again. This whole routine happens over just 60 minutes.

Other than the overall health and wellness I got I normally associated with exercise, and improved breathing because of swimming, I felt immune to temperature discomfort! After a while, the routine itself didn't bother, nor walking 15 minutes from the parking lot to my office under 50C summer sun at noon. I could go out in winter in any clothes I want.

It was very noticable and very specific. Sensitivity to temperature itself may be a form of unfitness.

These kinds of theories along with "you just need to acclimate to it" always hit a wall when they meet me, someone in great shape who grew up around Houston (where it's miserable) and sweats all day unless it's <80F with no humidity.

Right now I live on a beach that's 85F outside and I will be the only person profusely sweating tonight while most people don't even seem to have a sheen. I first noticed it when I moved to this beach newly single and was going on dates—it's a little confusing/embarrassing looking like you swam to the date yet nobody else is sweating.

Every once in a while I meet someone like me with a body made for the Swiss mountains. And every once in a while I meet the polar opposite: someone who can walk around in the Texas summer with pants and a polo.

I think it's 90% genetic. And muscle mass only makes you sweat more.

You're probably right, but my point was more specific than general fitness means less sensitivity to temperature. I haven't experience that either.

I meant the specific many temperature shocks daily (hot to cold to coldest to ok to cold to hot) absolutely changed the way I feel temperature. I still knew it was hot but I wasn't uncomfortable at all.

I don’t even work out with kettlebells and TRX in my AV/exercise/VR room when it is hot. I do get what exercise I can when it is cool but I haven’t been getting up before to hike this year because I’ve come to understand how important sleep is to my mental health. (e.g. back when I was getting up before sunrise to get a 6 mile walk in every morning my mental health wasn’t good)

I think your body has natural mechanisms to mitigate that initial discomfort.

I am now sitting under a tree, after biking in 85 degree weather in July on the east coast. I’ve also biked in 90 and 95 degree weather.

And I don’t feel hot at all. Going outside might seem unpleasant, but once you’re out there, it’s not just fine, but refreshing

I don’t know exactly why, but it’s probably sweat, clothing, basic metabolism, and basic psychological facts (perception is often triggered by change)

Likewise, I bike in cold weather (all 12 months on the east coast). I think it is pretty established that this is both tolerable and healthy - ie it’s a mild version of the people who swim in freezing lakes in the dead of winter

And keep in mind I worked in an office my whole career, and have never competed in a single sporting event in my life (although I do like some sports)

I think that's great for you. Truly.

Could it be that your experience doesn't apply to everyone?

I've been living in the same area as you, and I go for walks almost daily; it's astonishingly miserable out.

I have a friend who does almost identical physical activity to me, as we have similar jobs. He sweats very little when outside unless physically exerting himself. I sweat profusely when just walking; even when wearing significantly less clothing.

Sure, it doesn't apply to everyone.

And personally, I don't like walking long distances in the heat either -- I get hot and sweaty. I prefer biking, probably because the motion is more cooling

> I think your body has natural mechanisms to mitigate that initial discomfort.

I think the main natural mechanism the body uses is endorphins..

In my experience it also benefits from training, coming on quicker at the start of a regularly strenuous lasting activity. When I started going on runs regularly I could clearly sense when the internal drug supply turned on and it became the point where I mentally marked transitioning from a short sprint to endurance mode.

I've also noticed when taking people on long hikes who don't usually do such things, if we take an extended break they usually start complaining of aches and pains and are suddenly wrecked. My assumption has been this is the endorphin supply shutting off, and it's a tough hump to overcome to get flowing again now that the pain/soreness/exhaustion has become realized. I suspect folks who aren't accustomed to getting out and active at all are kind of pre-trapped in that state and don't reach the endorphins flowing mode even once before going back indoors to play vidya.

I read a NYT's article that said heat stroke's much more common in the start of summer than the end, so I made a conscious effort to get out walking a ton during this years first heat dome... and I'm pretty sure it works pretty well?

Even on humid, hot days with feels like 100 I can get out and bike pretty dang far at this point (non-electric 45 lb Citi Bikes here in NYC)

The downside is that I start sweating absolutely profusely basically the moment I step outside now :sob:

For context here though, much prefer the cold, and have never been a fan of the hot, humid, heat really unless I'm at the beach. But this year's been decent!

Heat adaptation is a thing.

There are benefits to heat training, assuming it's not insta-heatstroke temps: https://www.outsideonline.com/health/running/training/heat-t...

There's a reason people flock to the coasts. I grew up in the deep southern US. It was hot and humid, but we spent all day every day outside. We either went to the beach or played in the river. You just get used to the heat. We barely had AC until I was 15 or so and we could afford a house with central HVAC.

I think you just get used to the miserable sensation where used to it = acceptance.

There's beaches, pools, lakes if you really can't be in the heat.

Eventually you just get used to it.

Cold sucks though, glad I left that lol

So you like "only" for 9 months of the year?

Eh, it's cold for another three, then stormy for the other six.

They joys of living along where the jet stream dips in North America.

As we say in Scandinavia: there's no bad weather, just bad clothes.

Sometimes nudity is not an option when it goes above 100F.

Yes, imagine the sunburns.

You can easily tell good weather from bad weather - when the weather is good, no one has to come and explain to you how "actually, there is no such thing as bad weather".

If I'm in Scandinavia, this isn't a problem.