Houstonian Karen Walrond, a Girl Scout alumna and Girl Scout mom, is the author of "Radiant Rebellion: Reclaim Aging, Practice Joy & Raise a Little Hell," an investigation in how we can resist ageism and live a gratifying, meaningful life along the way. She is also the author of "The Lightmaker's Manifesto: How to Work for Change Without Losing Your Joy," which beckons readers toward lives of integrity, advocacy, conviction and joy. Learn more about Walrond.