Should my overactive 5 years old son learn a martial art?

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My kids kindergarden teacher said to my wife that we should send our son to an activity so that he would give away some of his tension. I was been suggested for an activity, such as soccer, swimming or martial arts. For soccer he can go when he reaches 7,5 years old. So it is swimming and judo of Tae Kwon Do. What do you suggest me?