THURSDAY, June 1, 2023 (HealthDay News) -- Kids who devote some of their free time to volunteer work may not only help others, but also themselves.That's according to a new study that found U.S. kids who spend time in community service are often thriving, physically and mentally.Overall, kids who'd volunteered in the past year were in better physical health, had a more positive outlook on life, and were less likely to have anxiety, depression or behavioral problems than their peers who did not do volunteer work.The findings, published May 30 in the journal JAMA Network Open, do not answer the chicken-and-egg question, researchers noted: Kids who were already high on the well-being scale may have been more apt to volunteer."We can't say this is cause-and-effect," said lead researcher...