How Long You Live May Depend More on Genetics Than Scientists Once Believed

One of the most common questions people ask older adults is, "How did you live such a long, healthy life?" The answers are usually all over the map. Some swear by early morning sunlight. Others credit a lifetime of avoiding junk food. A few shrug and say they never did anything special, they just tried to enjoy the small moments as they came.

Today, that same curiosity has helped fuel a booming wellness industry. From moving your entire family to Blue Zones to booking sessions in hyperbaric...