It’s the boiling pot experience. The heat is turned up so slowly you don’t even realize you are being cooked alive. You don’t even notice that you are increasingly uncomfortable- you can’t remember a time when things weren’t thus.
Prior to passing out- if it does occur to you that you are slowly dying, you will simply shrug and say “Temperatures often range from 100-104 degrees Fahrenheit. We all have to go some time, choose your poison”