Liu Yelin is almost 50 years old, but she looks half her age. She looks so young, people often think she’s her 22-year-old son’s girlfriend. The 49-year-old mom has stunned millions with her wrinkle-free skin and toned body.

“People are often shocked to find out I’m almost 50,” Liu told MailOnline. “Whenever I went shopping and told people my real age, I often got mobbed by strangers who wanted to find out my secrets.”

MailOnline

MailOnline

MailOnline

MailOnline

What’s her secret? Regular exercise for the past 30 years. The Chinese mom practices swimming and weight training every day. Her favorite activity is swimming outdoors, even in the winter. She has swam across the Han River in South Korea, the Yangtse River in China, and more recently, she crossed the Strait of Malacca from the shores of Penang in Malaysia.

Liu told MailOnline that successfully crossing the strait was one of the hardest things she has ever done in her life. She managed to complete the challenging 7.5-mile swim through seawater in four hours.

MailOnline

MailOnline

MailOnline

MailOnline

MailOnline

Liu's next goal is to travel the world and share her story. She wants to encourage more women to exercise well into old age to remain confident and beautiful.

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