There’s a little-known truth: public health saved your life today and you probably don't even know it. Public health makes our lives safer and helps us live longer, but its many successes largely go unrecognized. No small wonder it’s called “the invisibleshield” in a PBS documentary that aired last month. Former Director of the Ohio Department of Health, Amy Acton, M.D., discusses the important role Public Health plays in our lives. But underfunding and lack of public awareness are constant challenges. With Dr. Acton’s foresight, Ohio got through the Covid-19 pandemic, while politicians wanted to deny what science called for, which heightened the dangers brought by the disease. The question is, will we be ready for the next challenge?