Daily habits like the 'Power Nine' support a long, healthy life, expert says -- whether or not 'Blue Zones' are real

Researchers are questioning the validity of blue zones, areas known for longevity, like Okinawa and Loma Linda. Dan Buettner coined the term in 2005 after studying centenarians, but Saul Justin Newman believes the reported numbers are inflated due to pension fraud and poor record-keeping.