When extreme endurance athlete, Lisa Tamati, was confronted with the hardest challenge of her life, she fought with everything she had. Her beloved mother, Isobel, had suffered a brain aneurysm and a stroke, resulting in massive brain damage. The prognosis was dire. Relentless tells a story of despair, hope, love and the incredible insights found in the darkest of moments. It not only shares the difficulties of going against the medical fraternity, but provides information on the treatments used, expert advice, and key principles in overcoming obstacles. It will inspire and guide anyone who wants to succeed, no matter what the challenge. This book is for those who are facing terrible odds; for those who can’t see light at the end of the tunnel; for those who need to know about courage, self-belief, mental toughness, and being vulnerable when being relentless is the only option.