According to the doctor, any time the temperature is over 85 degrees, Cliff is supposed to stay inside. We don't have air conditioning, but the house IS about ten degrees cooler than outside. And sitting in front of a fan helps a little... at least it dries some of the sweat.
Obviously, Cliff is going to do what he's going to do. I've given up nagging and worrying (as much as possible) and I just hope the good Lord watches out for him. There's probably a special angel riding on the tractor with him.