MMA is a combination of martial arts proven to work in a combat setting. Usually, the martial arts that they learn are those that are proven and may be a sport itself, such as boxing and muay thai. These martial arts are designed to damage another human being in the most efficient and effective way possible. However, beginners often have a hard time utilizing this effectively. They will not look much better than untrained, but the fundamentals will still give them an advantage.
Naysayers who are often haters with no training will claim that it is just a sport, and is not the same when a real situation occurs. While it’s true that some adjustments can be made, even a little bit of training can easily carry over.