Gregor Hasler

}} Gregor Hasler is a Swiss psychiatry researcher, psychiatrist and psychotherapist. He is professor and chair of psychiatry and psychotherapy at the University of Fribourg in Switzerland. His research areas covers stress, depression, bipolar disorders, and eating disorders.

His most frequently cited findings include: * Discovery of an association between short sleep duration and obesity (published in 2004)[https://www.ncbi.nlm.nih.gov/pubmed/15283000] * Demonstration of GABA, glutamate, and glutamine abnormalities in depression * Elucidation of the role of dopamine and norepinephrine in bulimia nervosa * Discovery of markedly reduced metabotropic glutamate receptor 5 in smokers and ex-smokers Provided by Wikipedia