Herzberg and his colleagues believed that people had two sets of needs-one related to the avoidance of pain and one related to desire for psychological growth. conditions in the work environment would affect one or the other of these needs. Work conditions related to satisfaction of the need for to dissatisfaction caused by discomfort or pain were labeled Hygiene factors. Each set of factors related to one aspect of what Herzberg identified as the human being's dual nature regarding the work environment. Thus, , motivation factors related to job satisfaction, and hygiene factors relate to job dissatisfaction, as show in figure 5.3.