I agree about it not being as bad as cigarrettes for the lungs. as many scientific studies have backed this up, i believe mostly due to all the other bad things in cigs.

Though about water pipes i was sorry to read this article on canorml. I still use waterpipes because they are fun but apparently they are less effective and actually filter out more thc/cannabinoids than tar. As well as creating even more tar then if not used through water i believe it states:

"The California NORML/MAPS Smoking Device Study

[Article by Dale Gieringer printed in MAPS Newsletter, 1996; revised Nov., 1999]

Disappointingly, waterpipes performed uniformly worse than the unfiltered joint. The least bad waterpipe, the bong, produced 30% more tar per cannabinoids than the unfiltered joint.

This suggests that water filtration is actually counterproductive, apparently because water tends to absorb THC more readily than other, noxious tars.

The study results are obviously discomforting to waterpipe enthusiasts, many of whom prefer the cooler, milder smoke they produce, and have naturally assumed it is also more healthful. Unfortunately, however, the study indicates that waterpipes may actually be counterproductive in increasing consumption of carcinogenic tars.

Nonetheless, it is still premature to judge that waterpipes are actually unhealthful, since they may filter out other, non-solid smoke toxins occurring in the gas phase of the smoke, which was not analyzed in the study. Noxious gases known to occur in marijuana smoke include hydrogen cyanide, which incapacitates the lung's defensive cilia; volatile phenols, which contribute to the harshness of the taste; aldehydes, which promote cancer; and carbon monoxide, a known risk factor in heart disease. Previous studies indicate that water filtration may be quite effective in absorbing some of these"

^^^some of the article if anyone was interested, link wasnt really working.
expandingeye Reviewed by expandingeye on . How bad is this for your lungs? I know how a joint is equal to 5 cigarettes and that crap, but lately I've been smoking using my gravity bong :D I usually only take one or two hits on it and I'll be out of it, i was wondering if this is not as bad as a joint because it's only like one or two hits, if you use a bong does the water help make the smoke not as bad? Rating: 5