“When Canadian tenth-graders in a recent study began volunteering at an after-school program for children, the high schoolers lost weight and had improved cholesterol profiles compared to their non-volunteering peers. (Even in Canada, teenagers have cholesterol problems.) In the journal JAMA Pediatrics, the researchers concluded, “Adolescents who volunteer to help others also benefit themselves, suggesting a novel way to improve health.”
In another randomized controlled trial at Washington University in St. Louis, older adults who began tutoring children through a program called Experience Corps demonstrated improvements in stamina, memory, and flexibility, as well as levels of depression. When I spoke with Kim last year, he attributed at least part of those gains to the effects of a sense of purpose in life.” (Hamblin, 2015)
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