Hi It's Dr. Rosenthal again, I am the psychiatrist who first described SAD. AMAA!
Photo proof, I have 2 hours set aside to answer your questions.
Edit: For those who don't know, SAD is seasonal affective disorder, a condition of winter blues that affects many people when the days get short and dark
Edit: Thanks for your terrific questions. Reddit is always fun and I appreciate being part of it. Peace and Best Wishes to All
Edit: Thanks to all who kept asking great questions. I came back to visit and saw so many interesting comments that I spent an hour or so with you all again -11:20 EST. Norman Rosenthal