How old would you presume world's oldest female bodybuilder is? Believe it or not, the iron-pumping grandma just turned 80.

Ernestine Shepherd didn't start exercising until she was 56 years old but since then she's gone on to win two bodybuilding titles, reports Boredpanda. From 2010 to 2011 Shepherd was even declared the oldest competitive body builder in the world by the Guinness Book of World Records!

Photo taken from Ernestine Shepherd's Facebook page

So what's her secret? Discipline, determination, and good old fashioned hard work! She wakes up at 3am, she runs about 80 miles (130km) per week and she lives off a calorie-controlled diet of boiled egg whites, chicken, vegetables, and plenty of water.

But the true secret to her success is simple: she never gives up. So remember that next time you're procrastinating about going to the gym.

Source: boredpanda 

Photo taken from Ernestine Shepherd's Facebook page