Meet the PT who sweats on only one side, Harlequin syndrome from a 2015 surgery

Meet the personal trainer who only sweats on one side of her body due to a rare condition - which can prompt questions from clients.Sarah Burford, 34, developed Harlequin syndrome after having a benign tumour removed in 2015.Surgeons also removed sweat glands in the top left corner of her body, giving her the issue.