111-year-old

Most would consider themselves lucky to reach the age of 100 - and even more so if they're mobile.

To be 111 and still work out every day sounds nearly impossible - but not for Henry Tseng.

In fact, the great-grandfather-of-two rides on a recumbent bike every day for 30 minutes at the Collins & Katz Family YMCA in Sawtelle, , to keep in shape.

Born in Yokohama, , but living in Los Angeles since 1975, Tseng has been exercising for most of his life.

In his 80s he could perform yoga headstands and in his 90s he participated in 6.30am aerobics classes.

Tseng believes his secrets to staying fit are quite textbook and says that anyone - as long as they keep a daily gym routine and stay positive - can follow them to achieve success.

Henry Tseng, 111, of Los Angeles still works out at the Collins & Katz Family YMCA every day, spending 30 minutes pedaling on a recumbent bike (pictured)

His daughter, Linda Hsia, says her father has been active all his life and was doing shoulder stands into his 90s (pictured)

Tseng attended a fitness class three days a week at the YMCA at 6.30am until he was 102. Pictured: Tseng celebrates his 111th birthday in July

Tseng, a retired entrepreneur, has been active all his life and joined the YMCA in 1978.

His daughter, Linda Hsia, told Daily Mail Online that, when her father was younger, he used to enjoy swimming and playing outdoor sports.

'My parents have always lived a healthy lifestyle,' she said. 'They did not do drinking, smoking drugs, none of those things.'

Hsia said that in the 1950s, when they were living in Hong Kong, Tseng and his wife Annie - who passed away in 2013 at age 100 - had a yoga master come to their house and teach them how to yoga.

'Literally, into his 80s, he could do yoga headstands and he was doing shoulder stands into his 90s,' she said.

-Dailymail