@xooset I worked as a medic in a casino. They line up outside like an hour before opening and then rush through to a machine and will blow through thier months SS check and then "fall" while walking around in an attempt to try and sue the casino.
Holding your hit in longer doesn't get you higher ๐จ๐จ
THC is absorbed in the first few seconds of inhaling. anything past that and the light-headedness you feel is just oxygen deprivation, not more THC hitting. The "hold it til you cough" thing has always been wasted effort