I think it depends on the person. THC has different effects on different people. It can be helpful for relaxation purposes but can be harmful if used in excess.
For all the people who smoke every day and say, "it doesn't hurt me or make a difference".... To use an analogy, its like those American Idol rejects... when they sing, they hear... good voice, but those listening hear... not so good.
Moderation folks.
