Pubdate: Sat, 13 Jul 2013 Source: Daily Telegraph (Australia) Copyright: 2013 News Limited Contact: http://www.dailytelegraph.com.au/news/opinion/readers-comments Website: http://www.dailytelegraph.com.au/ Details: http://www.mapinc.org/media/113 Note: LTE form at bottom of comment page Author: Colliss Parrett Referenced: http://www.mapinc.org/drugnews/v13/n331/a01.html CANNABIS RISKS TOO GREAT Thank you Gary Christian (Letters, July 11). In the British Medical Journal (March 3, 2013) Professor John Henry wrote " cannabis is as dangerous as cigarette smoking - it may be even worse", adding users are up to six times more likely to develop schizophrenia. Dr William Oldfield wrote puffs by cannabis smokers " are two-thirds larger, they inhale a third more, and hold down the smoke four times longer . . . chemicals in cannabis smoke are retained in the body to a much higher degree, and cannabis today is 40 times stronger than that used in the 1960s". Colliss Parrett Barton, ACT - --- MAP posted-by: Jay Bergstrom