Lung cancer, from smoking weed or smoking conventional cigarettes does not occur in people your age. The effects of smoking, especially heavy smoking, grow over time and will increase your likelihood of getting lung cancer or emphysema. This could happen when you are 30 to 40 years old.
You should make a very real attempt to cut way back on your smoking.
It is possible to get a number of other cancers at age 16 but, for the most part, these are not related to smoking.
i quit smoking weed,cigarettes actually when i see some 1 on the street smoking itry to get as far from them as i can. I suggest to all of you out there stop smoking or atleast try i know its hard for some of you for me its easy i dont know why i think of smoking weed sometimes but i can refuse by doing other stuff like eating somthing so i focus on somthing else