Combat Jiu-Jitsu(CJJ) is a hybrid version of Brazilian Jiu-Jitsu that was primarily developed by Eddie Bravo to make Jiu-Jitsu matches closer to reality-based like Mixed Martial Arts(MMA). CJJ incorporates Jiu-Jitsu techniques with open palm strikes to make Jiu-Jitsu matches much more realistic.
The Judo syllabus teaches submissions, including choke-holds(without neck cranking) and joint locks. However, most people won’t notice there are submissions because Judo’s primary emphasis is on techniques that involve throwing your opponent to the ground to win the match.
The crucial difference between Judo and Sambo is that Judo was designed to be practiced for self-defense, mental and physical benefits, and as a sport for everyone. Conversely, Sambo was designed exclusively for the Russian military to prepare for brutal hand-to-hand combat situations.
The key difference is that freestyle wrestling involves all parts of the body while Greco-Roman does not allow contact below the waist.
Even though it is not viewed as traditional martial art like Karate, wrestling fits into the definition of a martial art as a fighting system with codes, traditions, and a set of prescribed movements to best an opponent in combat. By this definition, wrestling is certainly a martial art!
Wrestling at an early age cannot stunt growth. Studies have shown that restricting calories for cutting into a lower weight class can stunt growth, however. If a healthy, nutritious diet is followed, wrestling, like any other sport, can have many physical, mental, and emotional health benefits.