This Is Why Shaolin Monks Are so Strong

There probably isn't a single person in the world who hasn't heard of the Shaolin Temple. Not everyone is interested in documentary films, but the abundance of films about the life of the Temple and the monks helped everyone get to know him a little. However, this information is rather superficial, especially in Hollywood movies. Do you know why Shaolin teachers are so strong and invincible? What difficulties and adversities have they had to overcome to become true professionals?