One trainer shares what a simple plank challenge did for his mental and physical strength.
Could just two minutes a day transform your core strength, posture, and overall fitness? One 40-day challenge delivered ...
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Could a 2-minute daily plank transform your body in just 40 days? One fitness coach put it to the test
A simple two-minute plank every day may sound easy, but the results could surprise you. One fitness coach discovered that ...
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