I just joined this forum, and was hoping that someone with medical knowledge could shed some light on a question I have. I suspect this has already been answered, but I wouldn't know how to find it...
So basically I have developed a concept for remaining happy in my life, and it's working great, basically I do something special every day. It's usually just small things like calling a friend, eating an exotic fruit, etc. I usually plan these things a few weeks in advance, and my latest idea is to jump into cold water. I've never done it before, and I'm thinking of going for a run first to get my blood flowing, then jumping into a river. The thing is that here in germany it gets quite cold, and flowing water can get down to about 1 or 2 degrees C below 0 without freezing. The outside air will be somewhere between 5 and 20 below 0.
So my question is this: If I go for a run, jump into water at below 0, and then immediately get out and put on some dry clothes, am I gonna get pneumonia or something? I don't mind getting a cold that happens every winter anyway, I just don't want to seriously injure myself that's all... Thanks in advance for your answer :)