[Lou L]

She now admits that regular marijuana use among teenagers causes permanent damage to cognitive thinking abilities. She knows that it is true because she has seen the results in her own family.

I think I can safely say through first-hand experience, that marijuana use during teenage years has a detrimental effect on cognition, as well as ambition. This is certainly true in the shorter-term; longer-term use may not cause permanent damage, but it certainly creates a sub-culture of numb drones, unable to function in society.

Of course, shareholders in Yum! Brands such as Frito Lay, and other "munchie" snacks should be very happy with the sales results.

[Eva]

Testing proves an IQ drop of about 9 points that is permanent in teenagers. That is significant.