Chitetsu Watanabe, a Japanese born on March 5, 1907, was awarded the world's oldest man at the nursing home in Niigata by the Guinness Book of Records.

"As of February 12, Mr. Watanabe has lived for 112 years and 344 days," the Guinness Book of Yesterday posted on the website. The previous record holder, Masazo Nonaka, also Japanese, died last month at the age of 112.

Watanabe said the secret to a long life is to "not get angry and keep a smile on your lips". He likes to eat sweets like pudding but it seems that this hobby does not harm his health.

Japan is one of the countries with the longest life expectancies in the world. The oldest person on the planet is 117-year-old Japanese lady Kane Tanaka. Jiroemon Kimura, the oldest man in history, died after his 116th birthday in June 2013 in Kyotango.

The oldest recorded person in history is the French old lady Jeanne Louise Calment, who died in 1997 at the age of 122.