Quote Originally Posted by BoilerUp
The longer you hold it in the more THC will be absorbed but at the same time you hurt your body more. It's a trade off that you will have to find a balance between.
thats not true actually, 99% of the thc is absorbed instantly, so by the time your done sucking in from the pipe you can exhale. i like to hold it for a bit anyways, so its longer and more relaxing