Teens who smoke pot can damage memory, intelligence
(Reuters) - Teenagers who become hooked on cannabis before they reach 18 may be causing lasting damage to their intelligence, memory and attention, according to the results of a large, long-term study published on Monday.
Kate Kelland
LONDON
Mon Aug 27, 2012 3:04pm EDT
link-
http://www.reuters.com/article/2012/08/27/us-cannabis-mental-idUSBRE87Q0ZV20120827