Misao Okawa (L), recognized as the world's oldest person by Guinness World Records, is congratulated by an employee at a nursing home in Osaka on March 5, 2014, as she turns 116. She became the oldest living person in the world in June 2013.

Japan boasts the world's longest average lifespan. Researchers found that the Japanese have an extraordinarily low level of cholesterol in their blood due to their healthy eating style. The island of Okinawa in Japan, is known as the best place on earth for healthy aging.

A visit to longevity village in Hainan 

Hainan declared as "World Longevity Island"