Is weed bad? honest answer please?

It's a controlled substance so it's considered illegal. It does nothing wrong to your body. It only loosens stress. It's grown from a plant the. It's dried cut and smokes so I has no harmful substances like cigarettes do. So it's not harmful to you and it's not addictive nor is it a gateway drug just it's something you shouldn't smoke while driving and other things not bad for you at all unless you do what our government did and blow 4 hours of smoke to monkeys without and oxygen in there so you suffocated the monkeys which results in brain cells dieing. So that's why they say brain cells are killEd while smoking. But their not