[iRobbery]

I merely tried to remind the comment poster of the option that there could easily be other causes for his observations of the people has has known. And i can't see why you would instantly label this is discrediting.

Dear friend of mine, who i used to smoke with developed psychosis. So i know consuming cannabis can have negative effects. Cannabis has many compounds, and many studies show some of them have good properties others maybe bad properties. Some science says they cause mental issues other science and study show the opposite.

Again i just find the 'cant do math in head again' a weird statement or things to directly relate to smoking weed. There are plenty of people i know that have never smoked weed and can't do head math as well as they could when they were in high school.

Also to refer to your statement about weed & schizofrenia, there is plenty of research done, but nothing conclusive. e.g. https://pubmed.ncbi.nlm.nih.gov/32839678/

Anything can be harmful, if you use/eat/drink/smoke it enough. And surely not everybody just smokes weed because they 'like being stoned' as you write. Sure does not count for me.