I don't see many YouTube links posted here, but this Kurzgeasgt video blew my mind on this topic. Our immune system really is amazing. https://www.youtube.com/

I don't see many YouTube links posted here, but this Kurzgeasgt video blew my mind on this topic. Our immune system really is amazing. https://www.youtube.com/watch?v=LmpuerlbJu0 https://www.youtube.com/watch?v=LmpuerlbJu0