Fair enough. I would say every kind of drug, regardless of if its prescribed, used in moderation, over the counter, or an illegal substance, has negative effects on your body; in fact I'm convinced of that. However, this specific drug I prefer over tobacco and alcohol use; less addictive, less destructive. However, every foreign body going into your system effects the liver; the body's filtration unit. Drugs specifically cause liver damage, doesn't matter what drug it is. Other than that, anything burnt and inhaled causes lung damage, and this drug also can cause cardiac damage. The fact that is effects heart rate is proof enough of that; and when mixed with alcohol its even worse; one fastens heart rate while the other slows it down, so the user isn't aware the are as high or drunk as the really are; though this also occurs when mixing alcohol with caffeine.
In all honesty, I'd prefer a pot user over an alcoholic, though I disagree with recreational use of either. Alcohol I have a huge vendetta against, though casual drinking isn't a terrible thing either. I only have a problem with alcohol because my mom is an alcoholic and I hate having to live with it. Besides that I disagree with such choices, but I won't say that they are entirely terrible.