Does Cold Cause Colds?

(AP Photo/Rogelio V. Solis)

Wow- what a frightening cold and flu season it’s been so far! And even though it’s called a “cold” – cold air by itself can’t make you sick. In fact, cold air can rev up your immune system!  According to Dr. Rachel Vreeman, cells that fight infection increase when we’re exposed to cold weather. It’s how our body protects us against freezing temperatures.
So why do we get more colds when it’s cold? Two reasons: We’re huddling indoors, exposing ourselves to other people’s germs in close proximity. And, cold air is often dry. And dry mucus membranes are more vulnerable to infections.


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