It's about to be extremely cold in much of the US. Polar vortex coming. You could just go outside at night and hang out for a few hours and you'd freeze to death. Should be a painless death at least
It most certainly would be possible..but it wouldn't be very pleasant...Also, the success would not be guaranteed... My grandfather was an alcoholic, and one winter night he got very, VERY drunk. It was more than -25 Celsius outside. And he got to a bench, and for some reason, he believed that he is at home, so he got naked (to underwear) and layed down on the bench to sleep. He was found next morning, he survived but the doctors said that he will live maximum 5 more months. He lived more than 5 more YEARS (he was Szekely, so he was tough af but still, wow), but he got paralaized over time..first his feet, then part of his leg, then the whole leg and so on, and in the end he was in a wheelchair and couldn't move any part of his body....
So yeah...I wouldn't recommend this method, since it is unpleasant and also, does not guarantee by far that it would be successful