It should be kept in moderation though
That is the key to most things, imho.

The only negative effects from Cannabis are from the act of SMOKING Cannabis
Although I agree smoking anything causes stress to your lungs, your body has an amazing ability to repair it's self, this includes your lungs. I belive it is the sedentary lifestyle that causes negative effects, not weed. I know people who can't walk or run even a few yards without gasping for breath, and yet they have never smoked anything. An object at rest tends to stay at rest.
eduDrekoT Reviewed by eduDrekoT on . A Critical Standpoint on Smoking Marijuana After reading these forums for around a month, and attempting to comprehend certain statements that have been made about smoking marijuana, Iā??ve decided to write a few of my thoughts about this ever so interesting plant. Let me first say that in no way am I against people smoking it, and I hope you can try to listen what Iā??m attempting to get across with an open mind. Hopefully it will make for good discussion, as I am trying to understand why certain people think they way they do about Rating: 5