Hi Lori! Yes, a cold or tepid shower does exactly the trick. It cools the body, blood and brain. It's really not important to cool the house down so much as keep our bodies cool. I think we all miss this distinction sometimes!
Thank you for the reminder! And remember, no hot showers unless you have an outdoor shower. You do not want to create heat in your home. I am even making my morning coffee on the porch!