According to the 2015 report of the California Men’s Health Study, cannabis use was associated with a 45% decreased risk of bladder cancer. Researchers analyzed results from an 84,170-person survey that identified the rates of cannabis and tobacco use in 2002-2003:
- 34,000 (41%) reported marijuana use
- 47,092 (57%) reported tobacco use
- 22,500 (27%) reported using both
- 23,467 (29%) reported using neither
Eleven years later, 279 respondents had developed bladder cancer; 89 were cannabis consumers and 190 were not. And while cannabis was linked to a 45% cut in cancer risk, tobacco was associated with a 52% increased risk. Both substances used in conjunction yielded a 28% increased chance.
– Read the entire article at Leafly.