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is a Japanese alpinist who in 2003 , at age 70 , became the oldest person to reach the summit of Mount Everest .. alpinist. Mountaineering. Mount Everest. Mount Everest. This record was later broken .. Miura had two heart surgeries for cardiac arrhythmia , in 2006 and 2007 .. cardiac arrhythmia. cardiac arrhythmia. On May 23 , 2013 Miura again became the oldest person to climb to the summit of Mount Everest at the age of 80 .. Mount Everest. Mount Everest. This achievement is listed in the Guinness Book of Records .. Guinness Book of Records. Guinness Book of Records. He was unable to make the descent after reaching the top , and was airlifted from Advanced Base Camp at 6500 meters in elevation to Base Camp .. He also became the first person to ski on Mount Everest on May 6 , 1970 .. Mount Everest. Mount Everest. He descended nearly 4,200 vertical feet from the South Col -LRB- elevation over 8,000 m -LRB- 26,000 ft -RRB- -RRB- .. South Col. South Col. This feat was documented in 1975 , in the film The Man Who Skied Down Everest .. The Man Who Skied Down Everest. The Man Who Skied Down Everest. The film won the Academy Award for best documentary , the first sports film to do so .. Keizo Miura , Japanese skier , was his father .. Keizo Miura. Keizo Miura. Gota Miura , freestyle skier and alpinist , is one of his sons .. alpinist. Mountaineering. Gota Miura. Gota Miura. Yuichiro was exposed to snow sports from the time he was a child , and placed in his first skiing competition during his 2nd grade year in elementary school .. He moved south with his family but found that he missed the snow and winter sports , prompting him to enroll in Hokkaido University .. There , he continued to pursue skiing as a professional sport .. His advanced ability to ski , especially in the back-country , required him to reach higher elevations by hiking , expanding the breadth of his skills to include mountain climbing .. Once he became a prolific mountain climber , Yuichiro began challenging larger mountains , and skied down many of them .. Miura describes his diet as `` healthy eating and organic food .. He starts every day with a breakfast consisting of cooked rice , fermented soya bean , miso soup , eggs and fish .. Once a week he will treat himself to a 500g -LRB- 18oz -RRB- steak . ''. He said that he trained outdoors with 5kg on each leg and 30kg on his back for 5.5 mile walks , and also used a low oxygen room .