Want a stronger core – skip the sit-ups - Harvard Health

Sit-ups once ruled as the way to tighter abs and a slimmer waistline. Now planks — exercises in which you assume a position and hold it — are the gold standard for working your core.

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Hard Core Training for Hard Work

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Want a stronger core – skip the sit-ups - Harvard Health

Hard Core Training for Hard Work

If I do only 40-50 push-ups every day, will it help me lose weight? - Quora

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Will doing sit-ups every morning help me lose weight? - Quora