Some people have different heat tolerances. I worked in a cooler during my teenage years and grew a tolarance for cold. I seem to like it about 5 to 10 degrees cooler than my wife. This is great in the winter time, but I keep the thermostat on 65 in the summer. Even driving to work this morning I had the A/C on, when it was about 50 degrees outside. Nothing like nice cold A/C air.