Several things here about cannabis.............
First, my qualifications. I was a Navy Drug and Alcohol Program Advisor (DAPA) from 1994 until 2002. During that time, I was required to know the signs of use, what happened to people, as well as many other things concerning various substances that Sailors would take or drink.
I never smoked cannabis until 6 months after I retired, as well as researched it very well prior to doing so, because all the research I'd done in the Navy had pointed towards it being beneficial.
A couple of years back, there was a documentary called "Grass" which is narrated by Woody Harrelson. It starts off with Henry P. Anslinger in El Paso in 1939, and why he made cannabis illegal. It seems Anslinger was a racist who was looking for a legal way to lock up all the Blacks and Hispanics. Since they were the primary consumers of cannabis, they decided to make it illegal, and, the way they did that was via the Marijuana Tax Stamp. In order to get one, you had to bring in a harvest, but, if you showed up in the courthouse with your product prior to having a tax stamp, they would arrest you because you had pot but no stamp.
Kind of a Catch-22.
And, because there was a publisher who had lots of timber fields who didn't want to make paper out of hemp, as well as the fact that DuPont had just created plastic and wanted to pursue that rather than hemp, well.....that's how it started.
Anslinger then went to Hollywood and asked them to make a propaganda film to scare people away from pot. The film that resulted was called "Reefer Madness", and used not only the stereotypes for cannabis users (blown way out of proportion), but also every other drug stereotype was attached as well........cannabis doesn't make you violent or commit murder. Matter of fact, it kinda sparks creativity, why else do you think musicians and software developers smoke it? Add to the fact that in addition to the fear mongering via films, they made the penalties for pot possession VERY steep.
Then, in the 1960's, scientists started to research cannabis hot and heavy, and used the military as their test subjects. Matter of fact, they did quite a bit of research on it, and, in the 1970's, Nixon heard of some of it, and decided to commission a study on pot, as he wanted to use the study to denounce it. Interestingly enough, the LaGuardia Report spoke very favorably about cannabis.
Nixon threw the report in the trash.
Recently, like since the 1990's, Harvard Medical School, the Royal British Medical Society, as well as several other noted medical societies have spoken out about cannabis and it's beneficial use for things like Alzheimer's disease (Reagan had that, too bad he pursued a "just say no" program, might have made his last years a lot better), autism, helping with cancer patients undergoing chemo, as well as a lot of other things.
Incidentally, the Royal British Medical Society discovered a couple of years back that if you smoke cigarettes, you are 21 more times likely to get cancer than someone who doesn't smoke anything at all. If you smoke cannabis only? You are only 0.93 to 0.73 percent likely to get cancer, which means your chances are LESS than someone who doesn't smoke at all.
You cannot become addicted to cannabis.
You cannot overdose on cannabis, as you will fall asleep long before you could even get close to that point.
Harvard Medical School has done much research on this, and they say that a light user of cannabis is 1-10 joints/day, a moderate user is 15-25 joints/day, and a heavy user is 50 or more.
Oh yeah.......for those that state that cannabis is an instrument of the Devil? Well....according to the Old Testament and the Torah, one of the ingredients of the Holy Anointing Oil for the Kings of Israel was cannabis oil. Additionally, there is archaeological evidence in Israel that the Jews (of which Yeshua was one) smoked cannabis both medicinally as well as recreationally.
Yep..........I'm pretty sure that Yeshua (Jesus) smokes pot.
Oh yeah, it also helps with glaucoma too.