Extremely cold temperatures can force your entire body to go over into “survival mode” and everything that you think about and do becomes focused on staying warm. This is, of course, the right thing to do. But to feel good in the long run, you have to take care of yourself. If you make sure that you continuously recharge with energy and liquids, use your wind sack during breaks to get the best rest possible and stay dry and reasonably clean, you will have a better chance of finishing your trek in good physical condition. (And a positive side effect is that some of the things you should do also help you stay warm.)
• What to do during breaks
• Staying hydrated
• Food
• Keeping dry
• Drying your clothes
• Personal hygiene