Consiglio: If you occasionally let yourself feel cold early in the winter, you become acclimatized faster and it’s less unpleasant

Please don't try anything extreme, but when you expose yourself to mild cold weather, your body adjusts.

For instance, I walk around barefoot in shorts and a t-shirt a few times a day when the first 50 degree F (10 C) weather arrives, or I drive to work with the windows rolled down, and I feel comfortable wearing way less clothes than everyone else.

Notes

1. If this sounds miserable to you, you don't have to do it! I enjoy it because it makes me feel like I've “leveled up” and I have more freedom to spend time outside. But it's not for everyone.
2. Cold showers are great, too.
3. Again, don't do anything extreme. Once you start to shiver a lot, you've probably pushed yourself far enough and should head inside.

More info: https://www.coolantarctica.com/Antarctica%20fact%20file/science/cold_acclimation_human.php