On a recent Friday, professional boxer Johnathan Arroyo was teaching a class of seniors ranging in age from their 70s to mid-90s how to stay in shape — using their fists. "Whoa!
Boxing is a full-body workout. Deceptively so — you’re just moving your arms, how tough could it be, right? But if you’re throwing a punch correctly, you’re putting your entire body into that motion.
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