Marijuana ..Finally a Reason Not to

It has been very hard for anyone to find something really, really bad in hash. I guess this si porgress ..at elast of you know anyone who drags on enough joints every day t cf. with the obligate smokers.

Inhaled cannabis is more toxic than tobacco smoke

• 19 December 2007
• Jason Palmer
• Magazine issue 2635

Cannabis smokers beware: puff for puff, smoke from the plant contains significantly more chemicals and carcinogens than that from tobacco.

Cannabis smoke is well known to be more harmful to the lungs than tobacco, because smokers inhale cannabis one-third more deeply and hold it in their lungs for up to four times as long as cigarette smokers do. Yet while we have a list of more than 4000 chemicals and toxins present in tobacco smoke from dozens of studies, there is no comparable list for cannabis.

So David Moir of Health Canada and his colleagues set out to make a direct comparison, using machines that "smoke" the cigarettes and then collect and analyse the smoke. They found that directly inhaled cannabis smoke contained 20 times as much ammonia and five times as much hydrogen cyanide as tobacco smoke. Nitrogen oxides, known to affect the circulatory and immune systems, were ...