disorder Seasonal Affective Disorder In 1984, the psychiatrist Norman Rosenthal had no choice but to describe this condition and to name it as Seasonal Affective Disorder (SAD). Ahmed Alsemeiri Read more posts by this author. Ahmed Alsemeiri 28 Nov 2020 • 4 min read Subscribe to Utopia Educators Get the latest posts delivered right to your inbox Subscribe Great! Check your inbox and click the link to confirm your subscription. Please enter a valid email address!