Check out these links for the health benefits of lawn bowling
https://www.bhf.org.uk/informationsupport/heart-matters-magazine/activity/bowls
https://www.bowlsworld.co.uk/how-lawn-bowls-can-improve-your-health/
https://www.betterhealth.vic.gov.au/health/healthyliving/lawn-bowls-health-benefits
http://www.playbowls.co.nz/Why-Play-Bowls/Health-Benefits-of-Playing-Bowls