The book "Conversations about a restrained and sober life, in which, according to his own example, methods of preserving health until adulthood" by Luigi Cornaro are an old, but still relevant work, in which the author shares his experience in achieving longevity and preserving vital forces through a healthy lifestyle. Luigi Cornaro, an Italian writer and philosopher of the 16th century, in this book talks about the importance of moderation in food, regular physical activity, healthy sleep and getting rid of bad habits. He reveals the secrets of longevity, emphasizing that maintaining health is a matter of the head and caring for one's body. This book is a useful source of wisdom for those who wish to improve the quality of their lives by following simple but effective principles of healthy living. Recommended as a foundation for anyone looking to live a long and active life.