1) Addiction is caused more by social and environmental factors like isolation, lack of connections, and an impoverished living situation rather than the substances themselves. Experiments with rats in isolated cages versus an enriched social environment called "Rat Park" showed the isolated rats became heavily addicted while the socially connected rats did not. 2) Similarly, many US soldiers in Vietnam who were heavy drug users stopped using when they returned home to their supportive social environments and families. 3) Treating addiction by focusing on criminalization and isolation, as the "war on drugs" has done, is counterproductive as it increases disconnection. Countries that have shifted to decriminalization and treatment programs focused on reconnecting addicts