When people feel mentally fit and balanced, they are more resilient. Both physical and mental health affect well-being. Being better equipped to cope with life's difficulties and recover from difficult events improves overall well-being. Participation is measured in the context of a person's current state of health and within the person's current social and physical environments, thus capturing a more objective construction of the concept of HRQL.
It goes beyond direct measures of population health, life expectancy and causes of death, and focuses on the impact that health status has on quality of life. Many consider this to be a limitation of broader definitions of health, on the basis that well-being is neither objective nor measurable; this is discussed in more detail below (Mental Health and Wellness). Under this model, mental health and well-being are continuously distributed among populations, and it is also possible to enter and leave those states. The nature of this relationship is two-way, and mental health influences physical health and vice versa.
Life expectancy and healthy life expectancy (HLE) measures were used to inform this goal for several populations, which were based on self-reported health-related data, including global health status, prevalence of certain chronic diseases, and activity limitations. While being healthy and well sounds great, figuring out how to generate those qualities is easier said than done. Health promotion activities aimed at strengthening these individual, environmental and social resources can ultimately improve well-being. Optimal health comes from well-being, decision-making and the practice of behaviors that are based on sound health knowledge and healthy attitudes.
Behavioral and social risk factors for physical and mental health problems tend to overlap, which can make it difficult to determine whether mental illness precedes physical illness or vice versa. From this perspective, health is a means of living well, which highlights the link between health and participation in society. It differs from the traditional medical model, which defines health as the absence of disease or disease and emphasizes the role of diagnosis and clinical intervention.