This document discusses bodybuilding and muscle growth. It defines bodybuilding as maximizing muscle hypertrophy through intense workouts and strict diets. Bodybuilding is done for sports, hobbies, or personal satisfaction. Some view it only as a judged appearance while others see it as a sport. There are two types of individuals - those who can steadily gain muscle mass, and "hard gainers" who reach a plateau and have difficulty gaining more muscle beyond a certain point. The document promotes a website for more free content on getting ripped quickly.