Xu-Fu, was a famed Chinese explorer from the 2nd Century BC who set out on a voyage to find the elixir of eternal life. The story is known across South East Asia, but did Xu-Fu really finish his voyage in Japan? And more importantly, would immortality be all that great if it meant you had 2000 year old teeth? Athena and Tiernan look at all the evidence so you can decide.

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