World's Oldest Person Turns 117, Reveals Secret to Long Life

Misao Okawa, born 1898, celebrated the day in a pink kimono and with cake.

— -- The secret to a long life? Sleep and sushi.

That's the advice, according to the world's oldest person, Misao Okawa, who turned 117 today.

She donned a pink kimono with cherry blossom prints and a pink daisy pin in her hair.

And, of course, there was cake.

Asked for the secret to her long life, Okawa teased, "I wonder about that too." She's previously said the key is eating sushi and getting enough sleep, Guinness World Records reported.

Okawa said she was "very happy" to be 117, though her time "seemed rather short" when Osaka government official Takehiro Ogura asked how she felt about living for 117 years. Ogura gave Okawa a big bouquet to mark the day.

In addition to holding the title of "world's oldest person," Okawa is also one of few people who can call themselves a supercentenarian, a person 110-years-older or older.

"Reaching this age is an exceptional achievement, especially given the average life span for women in Japan is just under 85.9 years," Guinness World Records said.

"Misao has lived across three centuries," Guinness World Records added, "which have seen immense social and technological advances including the advent of motor vehicles, flight, mobile telephones, social networking sites and six UK monarchs, four emperors of Japan and 20 US presidents."

Okawa married her husband Yukio in 1919, and they had two daughters and one son. She now has four grandchildren and six great-grandchildren. Her husband died in 1931.

The Associated Press contributed to this report.

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