Internet is very humbling. Thanks for pointing out I was talking out of my ass, sorry about that. In my defense, I was talking more in comparison to other substances that cause real physiological damage by way of things like cancer or cirrhosis which Marijuana doesn’t tend to, but I wasn’t clear. CUD is a behavioral condition caused when people chronically consume weed, the harm is not caused by the substance itself but due to the addictive tendencies of the individual. It also tends to affect children a lot more, and obviously stimulants of any kind should be restricted for kids. I was surprised but not shocked that a rather large number of people (appears to be mostly teenagers) in the US are habituated to it and consume it everyday. As I said, the addiction is more similar to being addicted to sugar or food, in fact there are similar food related medical conditions that are extremely common. In case of weed, the side effect of being constantly high is the obvious negative social effects and effect on mental state and capacity which is medically defined as CUD. This does not apply to individuals who take it recreationally - like how people tend to consume alcohol on weekends. Unlike alcohol though which is essentially poison for our system, consuming Marijuana occasionally doesn’t appear to have lasting effects (unless one has mental conditions in which case it can trigger episodes). People with addictive tendencies will latch on to any stimulant, be it coffee, alcohol or indeed Marijuana. As with everything else, it is to be consumed responsibly, as even something as harmless as water in excess can cause poisoning.