Yuichiro Miura has an unusual routine for a man who just turned 75.
At dawn, the veteran adventurer wakes after a night in a private low-oxygen chamber. He straps weights onto his ankles, hoists a 20-kg backpack onto his shoulders and hikes for hours around Tokyo. Sometimes he adds a stroll on his treadmill.
Ask Miura why he isn't on the golf course or puttering around a vegetable garden, and he has a simple answer — Mount Everest.
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