IMO smoking large amounts of weed on a daily basis was a major cause of Bob Marley's cancer.
I made no mention of knowing a cure.
Smoking can cause cancer and other diseases, that's a fact.
You should use the acronym IMHO because your opinion is indeed 'humble'. Too bad IMSO isn't a common acronym.
Just admit that you're talking out of your sphincter and we can all move on with our lives.