0 Does holding in smoke make you higher?

We have all played the game taxi or a similar version when you pass the joint round and hold in your hit until the spliff returns to you, but does it make you any higher?

After much testing and discussion with some intellectual stoners with medical backgrounds we built up a few theories.

1. Holding marijuana smoke in after taking a hit gives it more time inside your lungs which having a high surface area allows more THC from the smoke to disperse into your bloodstream.

2. Holding your breathe for a long time will make you dizzy as your brain lacks oxygen, therefore holding your breathe after inhaling cannabis rather than oxygen will make you even dizzier.

After much 'experimentation' we came to the conclusion that there is no difference between holding in a toke for 10 seconds and 30 seconds except the oxygen depravation which makes you slightly dizzier.