When I was in my 20s to 40s I was very warm natured. I preferred 68 and lower temps. I remember looking over at my dog and she was curled up in a tight knot to stay warm. I realized is was cool in the house and got up from my computer and turned on the heater. It was 60 degrees in the house and I was in my typical t-shirt, and jeans. I can remember thinking it was HOT when it was 72 degrees.
Now I like it a little warmer, but not above 72 inside.