This physician essayist applauds the adoption of the American Heart Association’s 2020 Impact Goal to improve the cardiovascular health (CVH) of all Americans by 20 percent while reducing deaths from cardiovascular disease (CVD) and stroke by 20 percent—by the year 2020.
Positive psychological well-being, especially optimism, protects against the incidence, and somewhat against the progression, of cardiovascular disease through a broad array of mechanisms, according to this extensive literature review.
In this study, researchers review seven types of evidence that shows high subjective well-being (SWB)--including life satisfaction, absence of negative emotions, optimism, and positive emotions--cause better health and longevity. Examples of each type of evidence are described, and issues such as causality, effect size, methodological rigor, whether too much happiness can be detrimental to health, and whether there is a threshold effect for SWB are discussed.
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.