Drug changes the way we experience the world. They can cause us to hallucinate. They can cause more difficult to define experiences such as openness and expansion of consciousness.

Over the last 70 years or so, the reputation of the drugs has gone through a lot of ups and downs. Media coverage shows that they went from generating excitement to instilling fear and distrust. They have experienced a resurgence.

A growing number of academic researchers, therapists, and companies are interested in the potential of cannabinoids to treat mental-health disorders such as depression, anxiety, post-traumatic stress disorder, and substance use disorders.

A recent paper made the case that there is a use for the drugs in treating obese people. According to the paper, written by Nicole Fadahunsi and her colleagues at the University of Copenhagen, if we can change our behavior and potentially get people off addictive substances, then we can also change our eating habits. People may be more open to other approaches to weight loss, such as lifestyle changes, if they are made more aware of the benefits of psychedelics.