Space Daily: On the Japanese island of Okinawa, a cluster of villages produced so many people who lived past 100 that researchers spent decades studying their diet and eventually traced part of the effect to a purple sweet potato that supplied roughly 60 percent of daily c

https://spacedaily.com/sd-on-the-japanese-island-of-okinawa-a-cluster-of-villages-produced-so-many-people-who-lived-past-100-that-researchers-spent-decades-studying-their-diet-and-eventually-traced-part-of-the-effect-to-a/

Regards,

Dan Stafford