"Everyone knows" - a scary statement - that you get "a cold" from being cold. Now it seems to be a fact that you don't, because you get a cold from a (rhino)virus, not from the temperature.

**But is there any correlation between temperature and disease**? 

I've seen claims that "cold lowers your immune system", and stuff like that, but no real evidence. As soon as you look into scientific research about this, you get claims that the correlation is not causation, because in the winter people spend more time inside (close to one another) for instance. (See for instance [this article](http://web.archive.org/web/20140622192142/https://www.niaid.nih.gov/topics/commonCold/Pages/cause.aspx))

On the other hand - and I know this is a really bad form of reasoning -- I think if I'd go outside in the freezing cold wearing nothing but some summer pants, I'd not come out of that after a couple of hours like a happy camper. Is this non-sense, or is there some correlation between being cold (or even undercooled?) and disease? If so, how does this work?