Since this is currently at negative 19 for agreement let me defend it by saying that I take cold showers and ice baths. Over the last winter whenever it got below 0 degrees Fahrenheit I would go outside without a shirt on for 15 minutes or so. You can build up your cold resistance with gradual cold exposure. Same with heat exposure (via saunas) and heat resilience. I like exercising outdoors with heavy clothing on whenever it gets above 100 degrees Fahrenheit. I’m in my mid 50s.
Since this is currently at negative 19 for agreement let me defend it by saying that I take cold showers and ice baths. Over the last winter whenever it got below 0 degrees Fahrenheit I would go outside without a shirt on for 15 minutes or so. You can build up your cold resistance with gradual cold exposure. Same with heat exposure (via saunas) and heat resilience. I like exercising outdoors with heavy clothing on whenever it gets above 100 degrees Fahrenheit. I’m in my mid 50s.