A rather poor argument from the psychologist. If you open any newspaper or magazine, every week/two issues there are recommendations/suggestions/new ideas on how to improve sleep or why we sleep.

Similarly, if you open any newspaper or magazine, every week/two issues there are recommendations/suggestions/new ideas on how to lose weight. But I wouldn't say that a new diet book that recommends eating only watermelon for 3 weeks to lose weight is a positive influence, "because people were now talking about and thinking about losing weight".