In the first of it's kind study, long-term cannabis smokers have been determined to be 62% less at risk for neck and head cancers than people who don't smoke marijuana. This is one of the first studies to show the cumulative benefits of long-term marijuana use.
It's not quite clear whether smoking the herb itself is providing the protection or whether similar protection would be offered by eating products containing cannabis.
It's not quite clear whether smoking the herb itself is providing the protection or whether similar protection would be offered by eating products containing cannabis.
http://www.reuters.com/article/healthNews/idUSTRE57O5DC20090825Compared to people who never smoked pot, those who began smoking marijuana between the ages of 15 and 19 years were 47 percent less likely to develop head and neck cancer, while users who began at age 20 or older had a 61 percent reduced risk, Kelsey and colleagues found.