India, Dec. 6 -- Japan has long been celebrated for having one of the highest life expectancies in the world, leaving many people curious about what exactly sets them apart. Is it their food? Their lifestyle? Their mindset? Dr Jay Jagannathan, a neurosurgeon at the Michigan Neurosurgery Institute, specialising in multidisciplinary neurosurgery and pain management, explains in his December 2 Instagram post the fascinating mix of habits and cultural practices that help Japanese people live longer and healthier lives. (Also read: Cardiologist warns most heart attacks don't come from big blockages; explains what really causes them )

"One of the really interesting things about Japanese society," he said, "is that the average life expectancy h...