A grandmother in Chengdu, Sichuan province, who has taken up pole-dancing is living proof that life doesn't have to grind to a halt when you're old. 70-year-old Dai Dali began to learn pole dancing four years ago at a local gym. After years of practice, Mrs Dai now is able to perform many difficult movements such as hanging upside down with one leg, ballet in the air, and splits along the pole.