A LITTLE BIT OF RESEARCH ON THE BENEFITS OF GROUP SINGING
Belting Out Music Is Great for Your Health, And Here’s Why
Go ahead and sing it loud. https://www.goodhousekeeping.com/health/news/a47211/singing-health-benefits/
NOTE: There is a lot more research and anecdotal evidence that shows singing is a good idea. I have experienced it in myself and have seen it in others. It’s not a strange concept.