Cannabis has been in our diets for millenia ... taking it out of the diet might be a reason for that ... https://www.medicaljane.com/2013/11/08/cannabinoid-deficiency-may-explain-a-variety-of-health-conditions/ I worked in a coffeeshop in the Netherland (budtender) and there were people with all kinds of diseases that called it their medicine ... We had to stop letting forgeign people in the shops (politics, it was only in a few cities near the border) and I had sick people crying in front of me, because they didn't know where to go for decent "medicine" and they had to buy it on the streets, where you never know what you will get. Was heartbreaking to see ...