Katherine Bartlett is an unusual woman. She only weights 63kgs for 1m67 but the mother-of-two can carry more than 170kgs (27 stones) on her shoulders and can pull lorries too! It’s after flipping one of the biggest tyre during a class at gym that Katherine realized she had an incredible natural strength ability. The Britain’s hairdresser is one of the strongest women in the UK. Guys, I think it’s time to hit the gym and train harder, what do you think?