The newspaper went on to list a number of factors that contribute to childhood stress, including family conflicts, accidents or deaths in the family, perfectionism, an unbalanced diet, the spirit of competition, and a lack of leisure time.
४२ से ६० की उम्र के बीच के लगभग २,५०० पुरुषों पर ४ से १० साल की अवधि तक ध्यान रखा गया ।