You guys should try working in a ship engine room like me. 45 degrees is 'average'.... When you're in the Red sea, or worse, the Persian Gulf, it's more like 55................. I have to change my coveralls 4 or 5 times a day due to sweat. Salt replacement tablets, buckets of water.......................... Hell. But, who cares cos they pay me to do it. And the work is a tad physical.....