Did a heavy bag workout in the backyard between 2-3 this afternoon. In the shade of the oak with the wind it was a great sweat. Heat index was about 106f and my son didn't take it well. He was bonked and light headed by the end. He gulped a sports drink, took a coolish shower (there is no cold water here this time of year), and had a nap.
I have been pressure washing and landscaping the last week too. I don't know what it is, but I always feel fantastic a few hours after sweating out liters in the yard. All of that said, I would not want to deal with this heat if I did not know there was a A/C, ceiling fans, and icy cold water afterwards.