I start getting "lost" at 80 degrees. Cognitive issues seem to be the 1st to go. I get mushy brained and my body follows suit. Lately, my new thing is I can't say more complex words. I just can't say them. So, I have to spell them. I can spell just fine. The hotter it gets, the worse this gets.
When it gets real hot, I drink lots of ice water and use my big ice pack A LOT! It helps cool me down quickly. I also use fans and we have one in every room of the house.
Do what you can to stay cool, Dej!