If you are in your twenties and practice fighting arts that involve a heavy dose of athletics with high kicks, spins, many direct hits to the face, ( https://nationalpost.com/news/canada/mma-fighters-suffer-traumatic-brain-injury-in-almost-a-third-of-professional-bouts-study ) rolling around on the floor for most of typical classes, and other activities like this, you will get just so much mileage out of these activities after which, it will take its toll on your body. At some point, it will be important to throttle back or give it up to preserve your body. If not, it could impair your joints, you’re thinking, or your spine, in pursuing other activities.
Traditional martial arts benefit more on the inside than the outside.