In many ways, the world of cannabis continues to operate in the realms of rumor and hearsay. This is especially true when it comes to the possible medical and health benefits of the plant. And this shouldn’t be surprising. Cannabis prohibition laws have made it very hard to conduct and compile sustained scientific research. The idea that cannabis can extend your life expectancy is one of those topics that could be legend just as easily as it could be fact. So what’s really going on? Does weed make you live longer? Here’s what research shows so far.