Intrepid... what are you talking about?! The breath of smoke replaces -everything- in -every- breath of air: nitrogen, oxygen, helium, hydrogen, everything. In fact, the combustion of the herb -consumes- oxygen. THe percentage of the air that is oxygen has nothing to do with it.
Goodman3eb Reviewed by Goodman3eb on . Smoking before bed kills lots of brain cells? My dad told me not to get high before bed, he says it will destroy my mind :confused: this true? I know weed can kill brain cells, I mean everything does..but destroy my mind? -Sm0key Rating: 5