According to figures from the National Treatment Agency, people receiving help for cannabis abuse rose to 22,500 in 2006-2007, up from 13,400 during 2004-2005. The younger demographic almost doubled for the same period, rising to 9,500 from 5,000.
Super-strength varieties of home-grown skunk are replacing the North African hash found in Britain, which can approach strengths 25 times that of plants grown just a decade prior. Mental illness has almost doubled among cannabis users, nearing 1,000.
The National Crime Survey figures shows cannabis use is dropping. Despite research that suggests higher risks for mental illnesses among cannabis users, researchers are now trying to determine if they were already ill prior to their cannabis usage.