I think people vary in their responses to MJ.

I know some people who get mighty paranoid on it.

I tried it over 30+ yrs ago, on the urging of hubby when he returned from Vietnam. All the soldiers there seemed to do it.

I didn't like it. I had terrible hangovers the next day, burning lungs, etc. It wasn't worth the giggles for a short time IMO.
I tried cooking with it... made some chocolate chip cookies, and those were better.(I sauteed the MJ into the butter before mixing the other ingredients) But still not something I enjoyed or looked forward to. I don't do well with opiates either. So I think, that people vary in their response to MJ based on there neurotransmitter makeup in the brain.

I understand that there have been improvements to it since we tried it. Stronger, more potent, etc. That probably would totally annihilate me! I would have to be totally incapacitated by pain to even consider it again! But that is just my experience.