Bernoullitrial wrote:
Thanks...it was no pissing contest and meanwhile I have found the following information. https://www.outsideonline.com/2098556/surprising-benefits-training-heat
"Athletes can adapt to heat in one of two ways. The first is through incremental improvements in tolerance over time—work out in the heat a little bit every day, and eventually your body will dissipate heat more effectively. The second way is through thermotolerance, which is a cellular adaptation to an extreme heat experience, like suffering such severe dehydration after a run that you need an IV. Essentially, if you shock your system, your body will be able to withstand greater temperature stresses later on..... athletes who train in warm temperatures generally get better at regulating heat by sweating earlier, as Salazar did, or developing a colder resting body temperature. "
My N=1 on that is... no.
I got heat stroke and dehydration in a race a few decades back, and yes I sweat at a very high rate now, and my body temperature is a little lower. But my body seems to just shut down if I try to go hard in hot temperatures. I didn't have this problem before.
So if you train hard in hot temperatures, I think you at least need to be careful not to overdo it. This makes more sense, IMO: " One method of heat acclimation that Minson uses with his athletes is to do hard workouts on colder days or earlier in the morning, and then start training in hotter conditions with less intensity."