Popularity is by no means a guarantee of quality, but when a workout has over 100m views on YouTube, it certainly indicates that it’s worth giving a go. This 10-minute abs workout from fitness trainer Pamela Reif has currently clocked up an incredible 107 million views, so I tried it myself to help it on its way to its next hundred million.

You don’t need any equipment to give the workout a try yourself, but it’s worth rolling out one of the best yoga mats if you’re going to be doing it on a hard floor, as all the exercises in it are done on the ground.

Watch Pamela Reif’s 10-minute abs workout

The workout contains 20 exercises, and you do each of them for 30 seconds without any rest at all. That’s right, zero rest, which makes this a challenging session even if you’re already pretty fi

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