If there is the question, how to adapt to sudden cold or cool, one ought to compare it with the local night weather and temoerature outdoors, or if that is not as cold, then compare it with the night temperature and moisture of some well nnown town or county in the same country but on a more inland area.
If the cool indoors are tough for some animals that have come indoors unprepared, there ought to be available some amount of cooling that is ok for animals and at least quite ok for humans too.
The cold winter in a climate of the four seasons, says that indoors should be good for long tine stay indoors, and not any more artificially altered temoerature from what is outdoors. But the abiluty to bear indoors may get better via a short visit outdoors in outdoors clothes etc, so as to tune right to the local climate and it's ways of living.
If one needs to cool down a lot, cool drinking water or leaning against a cool wall, help to cool quickly.
*
10th of March 2025 Here in a cold climate of the four seasons people do not intuitively readjust artificial heating etc just when wanting to change body temperature. Instead such adjustments are made quite long term (may vary according to the time of the day) by one's best understanding and life experience and by discussing those with others who have wisdom in such heating or cooling machines. So in the hot countries those adjustment ought to be made in a good quality way but so that one can use them intuitively based on one's knowledge and lufe experience. If one copies from the climates of the four seasons, the variation according to the time of the day or noght are impotant: "outdoors is the heat of the middle of the day, some trees sheltering a little though", "it is the early afternoon quiet activity on the street", "evening is coming, let's see how we feel when the sun no longer shines to where one is", "evening air", and "outdoors is the cool of morning". So as one goes out, these kinds of situations vary, while the indoors ought to be good for a long time stay, and some extra cooling or heating from a separate source that is not somehow too strong cooling or heating.
If one wants spaces with different temperatures, those are typically lived in different ways, suited for different activities, and one learns what such ways of living, doing and spending time are, typically best or in the first times from the styles of artifacts meant for such places and temperatures, so by just trying to follow the ways of that foreign culture or factory worker's way of life, and then later one at least knows how to live comfortably in such places, but typically such ways do not suit all.
