What Are Blue Zones?

Blue Zones, as the documentary explains, are parts of the world where people live the longest lives — and even reach 100 fairly often. In Live to 100: Secrets of the Blue Zones, author and journalist Dan Buettner visits Blue Zones.

According to his research and interviews with centenarians, the secrets to living to 100 years old — while still being mobile and enjoying life to the fullest — are a lot more achievable for the average person than you might think.