People who have positive psychological well-being may be more likely to engage in heart-healthy behaviors such as exercising, eating a healthy diet, and avoiding smoking, all behaviors that also reduce their risk of cardiovascular disease. These researchers reviewed the evidence linking well-being and health behaviors, and described strategies to enhance well-being studied by others, and the implications for cardiovascular health.
While low levels of negative emotion or high levels of cardiorespiratory fitness are predictors of long-term survival in men and women, being both fit and not unhappy provides a strong combined effect, reducing premature death by 63 percent, according to this study.