Does holding it in cause brain damage

[Goodman3eb]

Using a gas mask or boxing out a car can cause damage, simply because of the carbon monoxide created in the combustion of plant material. However, I doubt simply holding in hits longer will hurt your brain.

Goodman3eb Reviewed by Goodman3eb on 08-26-2005. Does holding it in cause brain damage Does holding it in for long as possible and then blowin thru ur nose bad for ur brain, i dont think so but my friend says it does Rating: 5