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'Keep a smile on your face': World's oldest living man shares secret to longevity at 112

USA TODAY logo USA TODAY 4 days ago Adrianna Rodriguez, USA TODAY

Chitetsu Watanabe, 112, poses next to the calligraphy he wrote after being awarded as the world's oldest living male by Guinness World Records, in Joetsu, Niigata prefecture, northern Japan Wednesday, Feb. 12, 2020. (Kyodo News via AP) © Provided by Associated Press Chitetsu Watanabe, 112, poses next to the calligraphy he wrote after being awarded as the world's oldest living male by Guinness World Records, in Joetsu, Niigata prefecture, northern Japan Wednesday, Feb. 12, 2020. (Kyodo News via AP) Don’t get angry and “keep a smile on your face.”

That’s the secret to living a long life, according to 112-year-old Chitetsu Watanabe from Niigata, Japan.

Guinness World Records has officially confirmed that Watanabe is the oldest living man at 112 years, 344 days as of Wednesday. He was born on March 5, 1907, and is the oldest brother to seven siblings.

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Watanabe was presented with the official certificate Wednesday by Guinness World Records Japan’s Country manager Kaoru Ishikawa at his nursing home in Niigata, his hometown.

He spent 18 years in Taiwan after graduating from agricultural school, where he married his wife, Mitsue. He’s the father of five children.

Watanabe also served in the military toward the end of the Pacific War in 1944. He then returned to Niigata and worked at an agricultural office until he retired.

However, retirement didn’t stop him from being active. In 1974, he and his son built a new family home, and grew vegetables and fruit there until Watanabe was 104.

Until about a decade ago, Watanabe used to grow and shape small bonsai trees. His work was even exhibited.

These days, he loves to eat desserts such as custards and cream puffs, Guinness said.

The oldest living person, Kane Tanaka, also lives in Japan and celebrated her 117th birthday in January. The oldest person to have ever lived was Jeanne Louise Calment, who lived to be 122 and died in 1997.

Contributing: Associated Press. Follow Adrianna Rodriguez on Twitter: @AdriannaUSAT. 

This article originally appeared on USA TODAY: 'Keep a smile on your face': World's oldest living man shares secret to longevity at 112

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