19 Secret Dangers of Popular Gym Machines

Going to the gym feels like a virtuous and healthy act: You’re taking care of your muscles and lungs, burning calories, and protecting your heart—as long as you’re careful. You might be shocked to discover gym-related injuries increased by a third in recent years, according to research from the University of Arkansas. The dangers hit the headlines when Survey Monkey CEO Dave Goldberg fell off a treadmill and ended up with a fatal head injury.

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