A 116-year-old Japanese woman Kane Tanaka was officially confirmed as the world's oldest living person by the Guinness World Records in Fukuoka, Japan on Saturday. /VCG Photo

Tanaka, who is said to have a good appetite, was delighted to take a bite of strawberry cream cake at the official recognition ceremony held at the nursing home where she lives. /VCG Photo 

The supercentenarian was born on January 2, 1903, the seventh among eight siblings. /VCG Photo

What's the secret behind her longevity? The 116-year-old reportedly studies math every day and enjoys playing the classic board game Othello. /VCG Photo