【Product Name】 Restology: Saving You from Fatigue Hideki Katano Toyo Keizai Inc. 【Used】Almost like new Restology is about learning to rest, not just sleeping. Are you tired from the morning? Do you always feel heavy? Do you feel tired even after sleeping? Do you feel exhausted just going to work? Do you feel guilty about resting? Do you feel too tired to do anything after coming home? This book is effective for people like you! You can also buy it together with other books. Discounts are available in that case!