A 78-year-old grandmother who beat cancer and has worked every day for the past two decades says she has never felt healthier.

Super-fit Bai Jinqin from Tianjin, China, told local media she feels younger than ever after she decided to introduce exercise into her daily routine 18 years ago.

Bai, who in the past had to undergo three cancer surgeries, said she has realised just how important it is to keep healthy.

She said: 'I had poor health in the past, so I know the meaning of it.'

Bai said she never used to work out in the past due to her busy work schedules that also had her sitting down the majority of the time. As a result of her sedimentary lifestyle, Bai admitted she often fell sick and even contracted cancer.

After a painful recovery process that involved three operations, she said she decided it was time to regain her life by going to a gym and taking proper care of her health.

Bai first began with easier exercises at the age of 60 to avoid straining herself. But as she kept going, she was able to push towards a high-intensity regime that has earned her a stunning physique as well the title 'most beautiful yoga grandma' among the locals.

She said: 'At the very beginning, my physical ability was poor and I didn't know anything about workouts. But I truly believe that what's most important is to keep trying.'

She began posting videos of her workouts online and over time gained an impressive 100,000 followers on her social media account.

Various images show Bai being active at the gym by doing challenging exercises that include resistance training and weightlifting while in workout gear and boasting a full head of grey hair.

Now, the pensioner has become the envy of many thanks to her toned body that she gained as she began challenging herself with a range of exercises that include yoga, Pilates, battling ropes and core training.