PSYCHO: Why does 70 degrees feel comfortable to most of us? It may be that 70 is a Goldilocks temperature: any higher or lower and the body would constantly be sweating or shivering.
Why, then, do some folks with a core temperature close to what makes us comfortable feel always too cold or too hot?
Besides our bodily differences and our emotions and memories, mentioned earlier, we differ in body awareness or interoceptive awareness. There are people, perhaps cultures, who have become inured to thermal threats, like Wim Hof. People may ignore exhaustion in sports and work, and how many of us ignore the warning signs of sleep deprivation? People used to say that we could trust the “wisdom of the body“, following the famous physiologist Walter Cannon. That doesn’t work, but maybe giving it a little attention now and then isn’t too bad.
Other people can be too sensitive, or so we are told. In extreme cases, hypersensitive people may show illness anxiety disorder, which includes what used to be called hypochondria.
About one in 20 people are very sensitive to body sensations or are unusually concerned about their health. (Some clinicians distinguish between hypochondria and health anxiety, while others lump them together.)
In other words, thermal comfort depends not just on the temperature around you but your view of it as safe or dangerous. People who feel cold can feel vulnerable and lonely. (It works in reverse, too: loneliness is chilly.) Other contributors to thermal comfort include air movement and humidity and whether it’s day or night.
Medications and alcohol can make us feel warmer, although the vasodilation caused by alcohol can make the body lose heat faster. The sympathetic activation associated with stress can make us feel hot, but it can give us cold hands and feet, too. This is a heritable condition that can verge on the pathological.