>>76259071) Smoking it generally causes cancer faster than cigarettes. People hold it in their lungs longer and there is no filter.
2) It is intoxicating and will cause you to make bad decisions, just like being drunk will. Being drunk every day of your life is not a good thing.
>>76259233) I agree with this person's observations. I have seen a number of studies suggesting that it interferes with brain development, particularly while young. Other studies certainly suggest benefits for certain illnesses or the elderly, but I am guessing you are not elderly or taking it for an illness.
3.5) Anecdotally, and I know that's not worth much scientifically, I have never met anyone who was a long term marijuana smoker who was not mentally disturbed. There's a bit of a chicken and the egg issue given who a lot of stoners are in particular. See my remark above though on brain development. Chances are, if you are asking about this, your brain is still developing. Bottom line, if you are not using marijuana to treat an illness, you are taking risks, getting no benefits, and paying money. It's a very bad choice.