Quote Originally Posted by X
This is probably a real urban myth, but when I boxed (amateur), I would never ever blow my nose (ie when I had a cold or anything). I was convinced that blowing my nose would weaken the blood vessels at the back of my nose and make me more susceptible to nosebleeds when I was fighting.

I have never had a nosebleed in my life, and I have been punched very hard very many times on the nose.

Not sure of any scientific basis to this, but it seemed to work for me

wouldnt it be better to have a cleared up nose for better breathing in a fight?