Pot causes permanent brain damage- developmental retardation in young teens who begin smoking it.
It also causes all the same health problems that smoking cigarettes does, as it contains all the same toxins. Except more of them.
It also cause permanent paranoid schizophrenia. Long term potheads become social recluses and general failures in life.
I was using it basically to medicate. But my life is much better now than it was 10 years ago.
I don't agree with your dire statements about the permanent effects of MJ, tho.