Allie Bailey is an ultrarunner, award-winning endurance and life coach, speaker and podcaster who has run in some of the most extreme places in the world. She was the first woman to run 100 miles across frozen Lake Khövsgöl in Mongolia and to run the full length of the Panama Canal. She has crossed the inhospitable Namib Desert three times, run the length of the Outer Hebrides and completed a 1,000-mile off-road version of the classic Land's End to John o' Groats route in just thirty days. Allie has finished over 200 marathons and ultramarathons all over the world, most recently winning the 160-mile Summer Spine Challenger North and finishing the 2025 Dragon's Back Race. But the most remarkable thing about all of these achievements is that she accomplished most of them while battling depression and alcoholism. Although running ultimately became the vehicle that helped her buy the time to recover from a number of severe mental health breakdowns, it did not save her. In fact, there were times when it made her battle all the more difficult. After a seismic mental health crisis in 2021, Allie finally admitted to herself and those around her that she was an alcoholic and started her recovery. She left behind a dream career with major record labels and adventure companies and now works as a coach with a broad range of runners and endurance athletes, helping them unlock their full potential. In 2022, she was named as one of the most inspiring female adventurers in the UK by The Guardian, and she has appeared on numerous mainstream TV programmes including The One Show and Lorraine. Allie's first book There Is No Wall was released to critical acclaim in 2024, topping a number of Amazon charts on release. It is now being developed into a feature film. 31 Days is her second book. She currently lives in Yorkshire with her rescue dog, Pickle.