Why does running in cold weather have a headache?

In terms of sports, this is the expectation before adapting. If you just started exercising in cold weather, this is a normal reaction. What you need to do is not to run too hard, not to run for too long, the cardiopulmonary function can't stand it for a while, and then you must do it well. Keep warm after exercise; If you run for a period of time in cold weather and occasionally have a headache, I suggest you stop exercising and take a walk for two days to prevent cerebrovascular problems. I am engaged in physical training, and you can continue to ask me if you have similar problems. I hope this helps you.