In Japan, millions of people believe in ikigai (pronounced Ick-ee-guy)— a reason to move out of bed every morning. Ikigai has its origins in the Japanese island of Okinawa, which is said to be home to the largest population of someone who is more than 100 years old, in the world. The concept of ikigai is not exclusive to Okinawans: “there might not be a word for it but in all four blue zones such as Sardinia and the Nicoya Peninsula, the same …