"Physiology and psychology of laughter and the comic. A contribution to experimental psychology for naturalists, philosophers, and the educated elderly." is a book written by the author Ewald Hekker. In his research, the author examines the nature of laughter and the comic as a phenomenon standing at the intersection of physiology and psychology. The book is intended for a wide audience - from naturalists to philosophers, as well as everyone who is interested in the psychology of human development. The author systematically examines various aspects of laughter, explaining them from the point of view of physiology and psychology. Each chapter of the book is a new step in understanding and revealing the secrets of laughter, which is too often perceived simply as a manifestation of humor, without understanding its roots in human nature. The author makes an attempt to deepen our understanding of the role of laughter in our life and development.