Dr. Norman Rosenthal was the first to describe Seasonal Affective Disorder (SAD). What other practitioners once saw as stupid, is now a commonly known and treated mental disorder. Since describing this disorder, Dr. Rosenthal has then gone on to treat it through some pretty "wacky" methods. Light therapy, which is common practice now, was once again initially viewed as very odd and stupid to doctors. However, since his initial treatment, Dr. Rosenthal has gone on to recommend meditation, exercise, and now even poetry.
Website - https://www.normanrosenthal.com/
Latest book on poetry treatment - https://www.normanrosenthal.com/blog/book/poetryrx/