台灣精神醫學拓荒者，一生倡議並實踐心身醫學，推動精神病去污名化，現為台大醫學院名譽教授，台灣自殺防治醫學會理事長、全國自殺防治中心主任。率領團隊打造「心情溫度計」，串連基層診所建立起憂鬱症防護網，扭轉國人對精神疾病認知，讓憂鬱症患者及早被發現，推動人人是守門人理念，2010年終於讓自殺跌出十大死因之外。
中山醫學大學前校長，台灣精神醫學會前理事長，德仁診所院長。致力於推動憂鬱症與精神病去污名化及失智症的友善職場與社區，組織台灣憂鬱防治聯盟，協助辦理「腦的美麗境界」等一系列精神衛生展覽與講座，退休後開辦德仁診所，並積極推動失智症預防，繼續在前線守護民眾的精神健康。
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