Do productive activities reduce inflammation in later life? Multiple roles, frequency of activities, and C-reactive protein.

PURPOSE OF THE STUDY

The study investigates whether productive activities by older adults reduce bodily inflammation, as indicated by C-reactive protein (CRP), a biomeasure associated with the risk of cardiovascular diseases.

DESIGN AND METHODS

The study uses a representative survey of adults aged 57-85 from the National Social Life, Health, and Aging Project (N = 1,790). Linear regression models were used to analyze the effects of multiple roles (employment, volunteering, attending meetings, and caregiving) and the frequency of activity within each role on log values of CRP concentration (mg/L) drawn from assayed blood samples.

RESULTS

Number of roles for productive activities was associated with lower levels of CRP net of chronic conditions, lifestyle factors, and socioeconomic resources. When specific types of activity were examined, volunteering manifested the strongest association with lower levels of inflammation, particularly in the 70+ group. There was no evidence that frequent engagement in volunteer activity was associated with heightened inflammation.

IMPLICATIONS

Productive activities-and frequent volunteering in particular-may protect individuals from inflammation that is associated with increased risk of hypertension and cardiovascular disease.