Just adding to the pile of warnings... About 20 years ago, in the Netherlands, two people from my small town. Both were heavy users. They would visit a coffee

Just adding to the pile of warnings... About 20 years ago, in the Netherlands, two people from my small town. Both were heavy users. They would visit a coffee shop (our term for a weed shop) twice a day and stay for some 2 hours or longer each time. Dutch weed was already known to be strong back then, but I have no idea how strong. Probably still less strong compared to what is described in the article. I would estimate they smoked up to 4 full joints each day. Both developed a psychosis. One would start random fights with people. I saw him get arrested and in the police car kept bumping his own head to the door with full force. He lost his job and ultimately ended up in a mental facility. He had regular paranoia attacks about being followed and being hacked, and would ask random people to check his phone. He's been bouncing between the mental facility, the police and back again ever since. Already at the age of 25, he was a lost cause, as he had ruined every single aspect of his life. The truly sad part is that life goes on in this miserable state probably for several decades. As for prior conditions: I had known him for a long while before his detour. Had a steady job, full of life energy, never any aggression, no criminal record, clean as can be. The other guy started to attend the same prostitute, daily, whom he actually believed to be Madonna. The vast majority of his time though he spent driving between two specific dutch cities as a way to discharge excess electricity he believed to be in his car. I once was in his home where he picked up one of his mom's books. It was a cheesy doctor romance story. He starts reading out loud from the book but rather than literally reading the text, somehow this text got warped and transformed into his mind, and the output was some bizarre prophecy. As if he was effortlessly producing a brand new Bible on the spot. One of the strangest things I've ever seen anyone do. I don't know what happened to him, we lost touch. So yes, getting "sick" doesn't even begin to describe what weed can do when not taking care of dosage.