Dan A. Oren, M.D, (Asso­ciate Pro­fes­sor of Psy­chi­a­try, Adjunct at Yale Uni­ver­si­ty) has worked at Yale, the Nation­al Insti­tute of Men­tal Health, and the Uni­ver­si­ty of Rzeszów, Poland. Oren has lec­tured wide­ly and has writ­ten Join­ing The Club: A His­to­ry of Jews and Yale and co-authored How to Beat Jet Lag, as well as numer­ous sci­en­tif­ic articles.