As many of you know, I spend a lot of time in the winter cutting firewood, which means I'm out in the cold doing a fair ammount of labor for several hour stretches at a time. I came in with a headache a couple weeks ago and was about to pop a couple ibuprophins when I remembered a conversation I'd had with a medic in a fire class I took this fall. She said that one of the key symptoms of dehydration is a headache. I chugged a bunch of water and the headache went away with no medicine. When you're hot and sweaty you know you need to hydrate, but in the winter when you're cold, you have to remember to drink lots of water, too. I know I don't drink much water when it's cold unless I remind myself to do so, and I'd imagine I'm not unique in that regard. I usually drink from pint beer glasses at home, and I try to have at least 4 of those a day and that seems to do it for me, but the more the better. I do drink more if I'm especially active. Just a little bit of info I thought I'd share with the group.