Find out why explorer and educator Dan Buettner believes sweet potatoes are a cheap superfood that can help you live longer ...

Even better, you will find tonnes of them in your local supermarket. Explorer and educator Dan Buettner has revealed there is one longevity superfood that “everyone can afford” – can you ...

You’ve probably heard of the so-called “blue zones” — five areas in the world that longevity expert Dan Buettner identified as having residents who routinely live to be over 100.