Louise Minchin, 53, is marking her last day on BBC Breakfast today after 20 years on the programme. The star has now revealed the real reason behind her decision to leave the show, before setting her 3.40am alarm for the last time.Louise explained being forced to take time off work to undergo an ankle operation in December last year served as the wake-up call she needed to quit BBC Breakfast.The surgery came after the presenter suffered a painful injury when she was training for the "epic extreme triathlon Norseman" in the summer of 2019.After trying to push through the pain, Louise discovered the extent of the damage a year and a half later when she eventually had an X-ray and MRI.She was told she had broken a bone in her foot and had also.