Why You Wheeze When You Exercise in the Cold

It’s a bummer of a start to an exercise program: You finally get up the courage to do some high-intensity intervals, or to run in the cold for the first time, and ten minutes later you can barely breathe. Here’s why, and what you can do about it.

Source: Why You Wheeze When You Exercise in the Cold

One annoying thing about the cheap masks that I have noticed: the slight opening towards the top that they leave for the nose also serves as the spot where the warm air tends to escape when you exhale towards the eyes, which will fog up your sunglasses if you’re wearing any.