People who live past 100 years old in 'Blue Zones' follow strict '80% diet rule'
The Earth's five 'Blue Zones' are regions in which residents are 10 times more likely to live to 100 than anywhere else.
Longest-living people say '80% diet rule' may be why they live past 100
Blue Zones are small areas of the world in which residents are 10 times more likely to live to 100 than anywhere else. There ...