Quote Originally Posted by Breukelen advocaat
If holding smoke in kills brain cells, I wouldn't be capable of typing this right now.

Before recent revelations about the lack of benefits to holding smoke in for long periods, most people held it in for long periods. Coughing wasn't considered "cool" - so we would take long hits and inhale little bits of air while holding the hits in, usually for 15 - 30 seconds. It's probably far less dangerous than living in an area with bad air quality.
that depends on how much you smoke, if you're a 'few times a week' smoker than maybe. even if you're a 'one joint a day' kind of person i think this statement is invalid.