Smoking cannabis increases risk of cancer – researchers

OneNews 19 September 2014
Smoking cannabis may increase the risk of lung cancer in heavy users researchers say.

A recent study into the effects of smoking cannabis carried out by researchers at the University of Otago has found that heavy smoking of cannabis for 20 years or more may increase the risk of lung cancer.

The study found that more than one joint every two days for 20 years may increase the smoker’s risk.

University of Otago’s Associate Professor Brian Cox, says it cames as no surprise that cannabis smoking causes lung cancer due to the high use of the drug in New Zealand compared to other countries.

“These findings are consistent with previous observations that smoking cannabis has a similar mixture of toxic products of combustion as cigarette smoking and that higher concentrations are likely to deposit in the lung due to cannabis smokers breathing in the smoke more deeply, and holding their breath longer,” he says.

He added that the findings from the study suggest that public health programmes to reduce smoking may need to include greater initiatives to reduce cannabis smoking especially among young people. http://tvnz.co.nz/national-news/smoking-cannabis-increases-risk-cancer-researchers-6085779