Dr. Shigeaki Hinohara worked into his 100s. Photo: KYODO/Reuters

A Japanese doctor who studied longevity — and lived to 105 — said if you must retire, do it well after age 65

Up until his death in July, Shigeaki Hinohara was still treating patients and working up to 18 hours a day

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Dr. Shigeaki Hinohara worked into his 100s. Photo: KYODO/Reuters
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