Before revision: Background and History alt=Figure illustrating the biopsychosocial model for the male-female health-survival paradox.|400x400px|Figure illustrating the three types of factors that may contribute to the male-female health-survival paradox: biology, psychology, and social factors.
After revision: Background and history alt=Figure illustrating the biopsychosocial model for the male-female health-survival paradox.|400x400px|Figure illustrating the three types of factors that may contribute to the male-female health-survival paradox: biology, psychology, and social factors.