I practice being cold on purpose too. It was about 0C today and I have a shirt and thin jumper on (I have a jacket in my bag in case of rain). I think the metab

I practice being cold on purpose too. It was about 0C today and I have a shirt and thin jumper on (I have a jacket in my bag in case of rain). I think the metabolic effects are potentially interesting, but I actually do it for another reason: The stoic idea of exposing oneself to voluntary discomfort. [1] "While everyone around me is complaining about how cold it is or about how hungry they are I am content and comfortable with fewer layers of clothing and less food. I am just happy to be alive, as I have voluntarily endured much harsher situations. This practice of voluntary discomfort that Stoicism does more than just make you appreciate comfort, it teaches you to have a high tolerance of that which is uncomfortable and you will always be content; it is something that you should practice at least a few times a month because you grow confident that if you can survive these minor periods of discomfort, you can also survive major discomforts as well." I will always remember as part of Royal Marines commando training doing situps in a freezing stream in November on Dartmoor laughing hysterially with 20 other men about how freezing we were while the the training team looked on shouting "Come on men, this builds character!". They were right! [1] http://www.lifehack.org/articles/productivity/how-to-practice-being-comfortable-in-uncomfortable-situations-voluntary-discomfort.html http://www.lifehack.org/articles/productivity/how-to-practic...