When is the last time you did planks at the gym? How long did you hold it for? For those not familiar, planks are an exercise in working your core muscles. You start in the push-up position on your arms and hold it for 30 seconds to a minute. Well, I guarantee you that Mao Weidong, a member of Beijing’s SWAT team, has your best plank time beat. He recently set the world record for longest plank ever. Weidong held the plank position for 4 hours and […]

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