to hold it in or not...thats the question

[someuser]

The phycoactive compounds including THC are absrobed almost instantly, so you should inhale, and exhale as you would if you were just breathing normally. 3 -5 seconds tops, any longer than that and as Bobbong said i think, you'll be holding in tar.

Again, can anyone who 'preaches' this way of thought provide the STUDY or ABSTRACT that was done to prove this theory with instantly absorbed phycoactive chemicals.

If holding in the smoke longer then 7 secs yields no further result and increases 'damage' then I surely want to know... I just not going to take a stoner's words for it as gospel though