Kumar: Diet and lifestyle changes to help with anti-aging

Dan Buettner travels globally to speak to the world's longest-living people and observe their behaviors. Here, he explains how it has affected his diet and how it's affected his lifestyle. He says he has studied 100-year-olds and longevity habits for 20 years.

On Call with Dr. Kumar: Diet and lifestyle changes to help with anti-aging. Doctors say diet and lifestyle can go along way before spending money on a cream or procedure. Doctors: Diet, lifestyle changes can go a long way before going to the shops for anti-ageing cream.

On Call with Dr. Kumar: Diet and lifestyle changes to help with anti-aging. Doctors say diet and lifestyle can go along way before spending money on a cream or procedure. Doctors: Diet, lifestyle changes can go a long way before going to the shops for anti-ageing cream.