In order to investigate the processes of unfavorable attitude formation against physical activities among young people, twenty-four male and female students who, out of a sample of 613 college students, indicated such a negative attitude in a questionnaire survey were interviewed. Each interview, average time length being 50 minutes, constituted a case study. The interview revealed various contributing factors, in terms of cause-result relationship, in forming unfavorable attitude against physical activities. General tendencies among the extracted backgrounds why they had come to form such unfavorable attitude may be summarized as followds: 1. Strong inferiority complex due to uncoordination and the lack of efficient sports skills prevailed. 2. Being afraid of possible failures resulting from quiet and passive personality was often a fertile bed in promoting negative attitude against physical activities. 3. Distrustful experiences in the previously involved school physical education programs, especially complaints against neglection of individual differences by the physical educators, were frequently pointed out. 4. Rigid philosophy of the physical education teachers that only faster, higher and stronger performances deserve for favorable evaluation invited strong criticism. 5. Few among interviewed had ever experienced happiness of own physical movement. Although individual right and freedom should be highly respected, negative environment against the promotion of physical education and sports among young people, such as contributing elements to produce those who unfavor physical activities must be removed from homes and schools.