3A man diagnosed with terminal cancer and only a few months to live receives an anonymous phone call offering help. Having nothing to lose, he follows the invitation, which takes him to a remote part of east Africa, where he is forced to survive on his own, guided only by his primeval instincts awakened by his sudden disconnect from civilization. As he is forced to rewind the clock by a few thousand years, his body and mind gradually re-adapt to the environment in which humans have developed over millions of years. His dramatic changes in nutrition, physical activity, stress, spirituality, and his relationship to other human beings and to nature in general, save him and he is able to return to his earlier life, completely changed and able to pass on the secret of the cure to others. While the story is fictional, the explanations of the various lifestyle factors and their impacts on health and well-being are all based on solid scientific evidence. Hence the novel is intended not only as entertainment but also as an inspirational self-help book for anyone interested in finding a healthier lifestyle.