I just wanted to tell this person (who takes marijuana everyday) that just being a plant doesn't mean that it is healthy for our body.There are many toxic plants, infact all the drugs come from plants. Tobbacco is a plant, so is opium etc. But they all(including marijuana) interfere with our nervous system, slow down our response time, and cause addiction.It decreases our efficiency to work in the real world. So if taken without priscription, they definitely are NOT good for our body. Its like killing yourself bit by bit everyday. I am very sure that if you leave it(which won't be easy at first), you will feel far more energetic ,efficient and productive in your daily life.