Incredible weightlifting grandmother who trains in the gym more than SIXTEEN hours a week

Meet one of the world's toughest grandmas - an international powerlifting champ who says she looks and feels better than she did 30 years ago.

Mary Duffy, 71, took up gym work outs aged 59 in a bid to lose weight, and soon got hooked on lifting weights.

Now she spends around 20 hours a week pumping iron and exercising, and has more than 30 state and world records to her name.

The pocket rocket can lift more than many men a quarter her age - but is regularly told she's "too old" to be hitting the gym.

But she's proved the doubters wrong, and holds world records for deadlifting 250lb - more than a baby elephant - as well as benching 125lb and squatting 175lb.

The gran-of-one said her up to six hour daily gym sessions means she feels better than she did aged 40.

She has no intention of swapping her lycra leggings and training vests for a twinset and pearls any time soon.