<p>Ed Balls has confessed the "bewildering" struggle of watching a loved one experience dementia.</p><p>The Good Morning Britain host was interviewing Shameless star Anne-Marie Duff - whose 54-year-old brother Eddy was diagnosed with dementia in his early 40s - when he opened up about his own experience of caring for his mother.</p><p>Credit: 'Good Morning Britain' / ITV / ITVX</p>