The Checkup: How to Get a Ridiculously Effective Workout in Just 4 Minutes

And more healthy reads from around the Web.

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• You can do anything for four minutes, right? Two words: Tabata workouts. These workouts require all-out bursts of hard work followed by short rest periods—and only last for four minutes start to finish. [MindBodyGreen]

• You know you should be eating some fruit every day, but do you know exactly how much? Here’s what one serving of fruit looks like for blueberries, strawberries, grapes and more. [POPSUGAR Fitness]

• Imagine: a gym that refunds your money if you don’t get in shape. It exists! [Well + Good]

• Good news! Walking just 20 minutes a day could help you live longer, according to a new study. [Yahoo Health]

• Can smiling a lot cause wrinkles? Click through for the answer. [TIME]

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