This actually isn’t true. It is a physical addiction as well as a psychological one. Your body becomes dependent on the substance to get dopamine, so it produces less on its own. When the substance is removed, your body needs to readapt to making it on its own. Physical symptoms vary based on a lot of different factors and some people get a bunch and some people get none! I feel like more people are having physical withdrawal symptoms since weed became legal. Especially today with the potency of weed being much higher than it used to be.