US psychologist Kenneth Nowack delivers a speech on stress impact at work as he takes part in a conference 24 April 2008 in Madrid , Spain . Nowack is a licensed psycholigist who has over 20 years of experience in the emotional intelligence field . EPA / Kiko Huesca < 저작권자 ⓒ 2007 연 합 뉴 스 . 무단 전재 - 재 배포 금지 . >