One simple lifestyle choice could help you live longer, says longevity expert

The most effective strategy for prolonging life might be at the end of a leash.

Dan Buettner, longevity expert and founder of the organization Blue Zones in Minneapolis, Minnesota, highlighted a growing body of scientific evidence showing that owning a dog is strongly associated with a reduced risk of early death, particularly from cardiovascular disease.

"The best thing you can do to add years to your life may surprise you. Get a dog!" Buettner advised during a recent episode of "The...