There is good evidence that teens who smoke pot frequently suffer long-lasting damage to their still immature brains, including problems with memory, attention and executive functioning. I's not clear if people smoke pot because they are depressed and anxious or are depressed and anxious because they smoke pot. Clinical data suggests it can help improve patient quality of life. But, it can impact someone's life critically!
This is what happens with weed! They keep smoking it until... THIS Happens!