You know you cannot get rats addicted to cocaine if they live in their natural environments. You can only get rats addicted to cocaine if they’re isolated rats in a cage. They won’t bar press for cocaine in the natural environment, and it’s because they have alternative sources of dopaminergic gratification. That’s very interesting.
Jordan Peterson
For more, see “Masturbation Has Dangerous Effects on Dopamine” (Jordan Peterson And Andrew Huberman).