Health Six Things That Keep Former NASA Mission Commander Chris Cassidy Flying by Dr Natalie Singh - Health Editor July 4, 2026 by Dr Natalie Singh - Health Editor July 4, 2026 What Keeps Former NASA Astronaut Chris Cassidy Healthy and Active Post-Mission? Former NASA Mission Commander Chris Cassidy, who last flew in 2021, maintains a rigorous health and fitness regimen to … 0 FacebookTwitterPinterestEmail