I have hot hot showers, dad2be is a freak and likes cold ones hiss evil lmao. I think its just if its too hot for too long to a point where you are overheating its bad. The house Im in is a freezer box even though the water is hot i am still cold because the air is so cold so even though the shower is hot its not raising my body temp if that makes sense. Baths I think are worse because you tend to spend longer in them and your whole body is submerged in the hot water which means its easier to overheat. Thats my reasoning anyway lol I wouldnt worry too much as long as you arent pouring off with sweat and dying of heat exhaustion all should be well