Since the karate craze of the 1970s, countless armies of kids have punched, kicked, and yelled “hi YAH!” at suburban dojos and community centre martial arts classes across the country. Martial arts training fosters discipline, encourages physical fitness and gets your kid out of your hair for a couple of hours a week.

But as a parent, you may wonder: Does this kind of training actually help kids fight back, should they need to?

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It’s a common story, one day you’re training five days a week, rising through the belt ranks and hitting a new tier of skill and fitness every other month. The next, you’re getting barely any sleep and merely making it through the day is nigh impossible. But there are some things you can do to avoid quitting altogether.