High metabolism, resting heart rate of 46, warm sleeper, raised in Ky, of northern european descent, always warmer than others around me. I recall a volunteer trail work group eating dinner, all others in coats or sweatshirts, while I was in a T and shorts. Wife reminded me I was the one with a broken thermostat.
I truly enjoyed my outdoor work while employed for 30 yrs in electrical construction. Snow lightly falling, no problem working in only a flannel shirt for a top. Currently, we set the 'stat for 58* for sleeping, and anytime the wife is at work. She thinks her cats don't like it much, but they have no vote.