Marcus RanneyDr. Marcus Ranney is a London-trained physician and India’s leading longevity and high-performance expert. An avid explorer and adventurer himself, he is a Guiness record holder, has run marathons, climbed mountains, skied and trekked in the Arctic ad worked with numerous high profile athletes and high achievers in business and industry. He has trained with the British Royal Airforce and worked at NASA's Kennedy Space Centre in the USA. Blending cutting-edge science with real-world grit, he brings unique insight into stress, resilience, and performance. This book distills decades of frontline learning into practical lessons for life and leadership. Read More Read Less