I'm a 76-year-old retiree who travels often with my grandma friends. We're learning that the secret to healthy aging is adventure.

The aturhoe (right) is a retired grandmother who loves to travel. Courtesy of Beth Sobiloff When I retired and became an empty nester, I decided to start traveling. I've invited other grandmas on the road with me, filming our journeys. We chat with other retirees and learn that adventure helps us age healthier. This journey started with me feeling sorry for myself. Sixteen years ago, I was single and about to become an empty nester. That brought up regrets. I had always wanted to get an RV ...