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Sources and more reading
The Five Side Effects of Kindness: This Book Will Make You Feel Better, Be Happier & Live Longer - by David R. Hamilton
Why Good Things Happen to Good People: How to Live a Longer, Healthier, Happier Life by the Simple Act of Giving - by Stephen Post & Jill Neimark
Volunteering - Potential benefits of volunteering - https://en.wikipedia.org/wiki/Volunteering#Potential_benefits_of_volunteering
The Science of Generosity - Greater Good Science Center at UC Berkeley for the John Templeton Foundation - https://ggsc.berkeley.edu/images/uploads/GGSC-JTF_White_Paper-Generosity-FINAL.pdf
Wellbeing & Happiness: Volunteering and its Surprising Benefits - https://www.helpguide.org/articles/healthy-living/volunteering-and-its-surprising-benefits.htm
Doing good is good for you: Volunteerism contributes to a happier and healthier life - https://www.unitedhealthgroup.com/content/dam/UHG/PDF/2017/2017_Study-Doing-Good-is-Good-for-You.pdf
19 Healthy Reasons To Help Others - A Healthier Heart And 18 Other Benefits Of Volunteering - https://www.huffpost.com/entry/health-benefits-of-volunteering-helping-others_n_909713
2016 Deloitte Impact Survey - Building leadership skills through volunteerism - https://www2.deloitte.com/content/dam/Deloitte/us/Documents/us-deloitte-impact-survey.pdf
A Proclamation on National Volunteer Week, 2023 - https://www.whitehouse.gov/briefing-room/presidential-actions/2023/04/14/a-proclamation-on-national-volunteer-week-2023
Andam, Reza & Ghorbanian Rajabi, Asieh & Benar, Nooshin & Hosseini, Shahoo. (2013). The study of self esteem among volunteer and non volunteer in sport. International Research Journal of Applied and Basic Sciences. 4. 286-290.
Ayalon L. Volunteering as a predictor of all-cause mortality: what aspects of volunteering really matter? Int Psychogeriatr. 2008 Oct;20(5):1000-13. | DOI: 10.1017/S1041610208007096
Chu J-T, Koo M. Life Satisfaction and Self-Esteem in Older Adults Engaging in Formal Volunteering: A Cross-Sectional Study in Taiwan. International Journal of Environmental Research and Public Health. 2023; 20(6):4934. | DOI: 10.3390/ijerph20064934
Detollenaere J, Willems S, Baert S. Volunteering, income and health. PLoS One. 2017 Mar 8;12(3):e0173139. | DOI: 10.1371/journal.pone.0173139
Inagaki, Tristen K. PhD; Bryne Haltom, Kate E. BA; Suzuki, Shosuke BA; Jevtic, Ivana BA; Hornstein, Erica MA; Bower, Julienne E. PhD; Eisenberger, Naomi I. PhD. The Neurobiology of Giving Versus Receiving Support: The Role of Stress-Related and Social Reward–Related Neural Activity. Psychosomatic Medicine 78(4):p 443-453, May 2016. | DOI: 10.1097/PSY.0000000000000302
Lawton, R.N., Gramatki, I., Watt, W. et al. Does Volunteering Make Us Happier, or Are Happier People More Likely to Volunteer? Addressing the Problem of Reverse Causality When Estimating the Wellbeing Impacts of Volunteering. J Happiness Stud 22, 599–624 (2021). | DOI: 10.1007/s10902-020-00242-8
Mogilner, C., Chance, Z., & Norton, M. I. (2012). Giving Time Gives You Time. Psychological Science, 23(10), 1233–1238. | DOI: 10.1177/0956797612442551
Salt E, Crofford LJ, Segerstrom S. The Mediating and Moderating Effect of Volunteering on Pain and Depression, Life Purpose, Well-Being, and Physical Activity. Pain Manag Nurs. 2017 Aug;18(4):243-249. | DOI: 10.1016/j.pmn.2017.04.004
Sneed RS, Cohen S. A prospective study of volunteerism and hypertension risk in older adults. Psychol Aging. 2013 Jun;28(2):578-86. | DOI: 10.1037/a0032718
Yeung JWK, Zhang Z, Kim TY. Volunteering and health benefits in general adults: cumulative effects and forms. BMC Public Health. 2017 Jul 11;18(1):8. | DOI: 10.1186/s12889-017-4561-8