I used to smoke pot for years when he was a teenager. Every day for probably about 5 years. Since then he got a career and didn't have time to party anymore. Now he is at a point (5 years later) when he goes to smoke with other people, he gets high off of 1-2 hits and turns into a moron. He can't think, can't talk, can't walk, and can't be around other people. All he can do is sit there and be high. Is this just a part of getting older? Is there any way to go back to the way things were and be able for him, to go party and accually smoke with other people?