“We found that the effects of a moderate level of volunteering — between 50 to 199 hours per year, or about one to four hours per week — were strongest for retired people,” said Cal Halvorsen, an associate professor at the Brown School and co-author of the study “Does volunteering reduce epigenetic age acceleration among retired and working older adults? Results from the Health and Retirement Study.” The study will be published in the January issue of the journal Social Science & Medicine.
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