Monica Cvoro, Dietitian at Ideal Nutrition, discusses how alcohol affects muscle growth and exercise, including its impact on muscle protein synthesis, hormone levels, dehydration, sleep quality, and recovery. It emphasizes the importance of considering the timing and amount of alcohol consumed in relation to exercise, as well as the negative impact on food choices and nutrition. The chapter also explores the relationship between alcohol and sleep, highlighting how it aids falling asleep but disrupts the sleep cycle, leading to lighter and less restful sleep.