If You’ve Perfected the Traditional Plank Try the Challenging, Ab-Quivering Copenhagen Variation

Mix up your ab routine and continue strengthening your core with the Copenhagen plank variation. Here's how to do it.

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Photo: Getty Images/<br />jacoblund

The 5 Best Pilates Exercises to Improve Flexibility

Stretch your limits with these gentle movements.

Unrecognizable woman stretches arms to legs while stretching on yoga mat on wooden floor of an outdoor terrace.
Photo Credit: Stocksy / Alexander Grabchilev

If Your Fitness-Focused New Year’s Resolution Isn’t Working, Try These 5 Expert-Backed Tactics

New Year's resolution not working out for you? Don't stress. Try these five New Year's resolution alternatives backed by experts.

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Photo: Stocksy/ZQZ Studio