I have high heat tolerance, but can't stand my feet, hands, and body being fucking cold.
When I go into sauna, I'm usually the last person to get out (even fall asleep enjoying it). I <3 heat.
Maybe you has serotonin problems? Studies show that serotonin has a strong link to the body's ability to control itself and adapt to the environment.
My SSRI medication causes me to get really really hot. Normally I'm freezing my ass off. If I take a pill 30 minutes before I shovel, I can shovel with my jacket open and no hat when it's -20C outside.
That's also one of the reasons people die when they take illegal drugs like MDMA. Super high serotonin = super high body temperature. The fever kills them.
http://www.nih.gov/researchmatters/august2011/08082011serotonin.htm
In another set of experiments, the researchers found that switching off the serotonin-producing neurons disrupted maintenance of a healthy body temperature. When the room temperature was set at 74 °F, normal mice could stabilize their body at the typical 98.6 °F. But the body temperatures of mice with the switched-off neurons quickly plunged to match the 74° room temperature.
“By selectively switching off the serotonin-producing cells, we can get a definite idea of what bodily functions the serotonin cells specifically control” Dymecki says. In future studies, she and her colleagues plan to add the CNO receptor to specific subsets of serotonin-producing neurons. Their goal is to better understand the role these neurons play in health and disorders such as SIDS and depression.
I live in a basement where it's about 75F (24C) all the time. My gf and I put blankets and garbage bags over the basement windows and fire place, so our section of the house is insulated. The upstairs (where the landlord lives) appears to be very poorly insulated - big living room window, single pane glass, no attic, open concept (better air flow allows more heat loss). As per the lease terms, the house temperature is set to 22C during the day. Our basement area is always warmer than this. The furnace seems to run endlessly.
Seriously guys, insulate your home. Just putting bags and blankets over the windows changed the basement from super cold to super hot. It's amazing.