Sense of Purpose Linked to Healthier Lifestyle
“Our analysis found that participants’ sense of purpose was positively associated with their reports of both vigorous and moderate activity, vegetable intake, flossing, and sleep quality,” said the study’s lead author Patrick Hill, assistant professor of psychological and brain sciences at Washington University at St. Louis.
The study, which appears in the Journal of Health Psychology, set out to identify pathways and mechanisms that might explain how a sense of purpose contributes to health benefits. The analysis used data from the long-running Hawaii Longitudinal Study of Personality and Health, including new surveys of a diverse group of 749 people with an average age of 60.
The study participants were initially surveyed as children, part of an original community sample of elementary school students on the islands of Oahu and Kauai, and have been re-contacted as adults to complete surveys approximately every two years. The sample is known for its ethnic and cultural diversity.
The Big 5
One goal of the study was to show that having a purpose in life has positive health effects that are independent of the Big Five personality traits—openness, conscientiousness, extraversion, agreeableness, and neuroticism.
Participants completed measures of sense of purpose, health behaviors, and self-reported health, which were combined with their self-reports on the Big Five personality traits from a survey conducted two years earlier.
Participants responded to a series of health behavior questions, such as how often they ate healthy vegetables, how well they slept, and whether they flossed routinely. They also rated how often in a typical week they engaged in strenuous or moderate exercise.
“Participants reporting a higher sense of purpose also reported a greater likelihood to enact all health behaviors of interest and higher self-rated health,” Hill said. “Overall, these findings point to the importance of considering healthy lifestyle habits as a prominent explanation for why purposeful individuals experience better health outcomes.”
What Flossing Indicates
As the authors note, some behaviors they examined serve as proxies for broader health variables. For instance, if an individual flosses regularly, they are likely to participate in other healthy activities. Eating vegetables on regular basis signals healthy eating habits. Sleep quality has been associated with reduced stress, Hill said.
Researchers examined each behavior independently and in combination with other behaviors and demographic variables, such as personality type. In all scenarios, having a sense of purpose had a significant direct effect on self-rated health and a more modest, indirect effect on individual health behaviors.
“Participants who reported a higher sense of purpose also reported greater strenuous and moderate activity, likelihood to eat vegetables and floss, as well as better quality sleep,” Hill said. “All of these associations held even when controlling for the Big Five personality traits, with the exception of flossing.”
The findings provide further evidence that the health benefits associated with sense of purpose cannot be fully attributable to broad personality traits, such as the Big Five. They suggest that having a purpose in life can be viewed as a multifaceted construct that influences both self-regulatory capacity and specific behaviors, such as physical activity, sleep quality, diet, and self-care.
“The findings support the case that a purpose-driven life may also be a healthier life,” Hill said.
This article was originally published by Washington University in St. Louis. Republished via Futurity.org under Creative Commons License 4.0.