Good Morning Britain presenter Richard Madeley previously recalled the moment his late mother Mary discovered she had both cancer and Alzheimer's disease, and in honour of Alzheimer's Disease Awareness Month in November, we're shining a light on the star's experience.SEE: GMB's Richard Madeley shocks fans with comment on Kate Middleton's size - watchIn an interview with the Express in May, Richard said: "My mother, about 12 years ago now, she was in her early eighties then, but she began to get