Blue Zones are an area of interest for many, geographical locations in which people live longer than average. Some such areas are in Sardinia, others in Okinawa in Japan, Nicoya in Costa Rica, and Ikaria in Greece – all of which have a significant number of people living into their 90s or hundreds.  

But why are these people living so much longer than average? Dr Dougal Sutherland delves into the research and reasons behind the extended lifespans of those in Blue Zones. 

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