Hey man, one word: CHILL. really man, youre over thinking. no, smoking every once and a while will have no effects on your health. like she said, alot of people on this board have been smoking every day for years with no real detrimental effect on thier health. maybe decreased lung capacity and trouble breathing after running and shit but really, how many pot heads do you see running a mile? sorry to those of you who are into sports. i used to bake out every day and have never had a problem, i have more trouble from smoking cigarettes even though weed is supposedly soooooo much worse for you lol. dont worry about it so much man, Peace