"Never Hungover Again" is a book by Dr. A. J. Jacobs that explores the science behind hangovers and offers practical advice for avoiding them. The author combines personal anecdotes with research to provide insights into how alcohol affects the body and mind. The book also includes tips on hydration, nutrition, and lifestyle changes that can help mitigate the effects of drinking. By focusing on prevention and self-care, "Never Hungover Again" aims to empower readers to make healthier choices regarding alcohol consumption.