well if ur worried test ur self see how long u can go im 17 and been smokign since 13 everyday and i got worried too that i was harming my self so i did a trial see how long i could go i went about 2 weeks then by choice i decided to have a spliff cos i was sittin in a smoke filled room and fort if im gonna passive smoke i mite as well light up.

just test ur self no 1 is physically addicted to weed think of it this way 1 spliff = 3 fags i dont know many ppl who smoke 20 spliffs a day but i know many people who smoke 20 and even 40 fags a day, rememebr if smoking not fun then dont do it, give it a brake make it a special thing, stoned is a state of mind i always have fun and never regret shit and ima marry my maryjane.

well hope that helped.

Happy thanksgiving to all in USA at the moment :-)

love from the UK