I dono man I think the herb is giving me bipolar disoder. I have been smoking for 4 years and I occasiaonal take the month break. after daily use for a prolonged time I quit cold turkey. The effects I experience are a loss of appettie (I am currently on day 2 actually of a break) I havent eaten anything, trouble sleeping not so bad this break tho, and huge problem controlling my temper. I flipped my gord today and almost went into tears over a math test. I am easily agitated and all that shit. It goes away, but all this happeneing every time i quit has to mean something, i support the herb, but personal experiments at a constant don't lie.