Christine Hobson, 72, reports that she began running in her 50s after being overweight and unfit. According to the accounts, she has since completed 126 marathons and describes achievements including being the oldest woman to finish the world’s most brutal race in Antarctica. The articles also say she has lost more than 3 stone and claims to have reversed her “biological age.” Both sources describe her as having made significant lifestyle changes that included sustained endurance training over many years, leading to marathon completions. The write-ups focus on her personal journey and outcomes—weight loss, marathon participation, and her record-setting Antarctica finish—rather than providing independent verification or detailed training or medical data. The common theme across both reports is that Hobson started running later in life and credits her later-life fitness and running routine for her subsequent achievements.