A Japanese doctor who studied longevity — and lived to 105 — said if you must retire, do it well after age 65 August 3, 2017Mickey Leave a comment Until a few months before his death at 105, longevity expert Dr. Shigeaki Hinohara worked 18 hours a day. Source: A Japanese doctor who studied longevity — and lived to 105 — said if you must retire, do it well after age 65 Related