hold it in as long as you want man. the longer you hold it the more THC you get, but most of it is absorbed within the first seconds of inhalation anyway.
fortyoz420 Reviewed by fortyoz420 on . How long should till you exhale. Coming up this year is my one(yeah one) year anniversary of smoking pot. Now i have a question, how long should you keep smoke in your lungs. Till you can't hold it any more? Does it really matter? If this question sounds strange its most likely that my brain is in another place right now. Rating: 5