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  1. 🧪 TIKTOK VS. SCIENCE: The ULTIMATE Ab Training Experiment (With Evidence-Based Results) 🧪

    🧪 TIKTOK VS. SCIENCE: The ULTIMATE Ab Training Experiment (With Evidence-Based Results) 🧪

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  2. Gradually progress to an advanced plank and build those abs!

    Gradually progress to an advanced plank and build those abs!

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  3. Do THESE to work the upper and lower abs and obliques‼️

    Do THESE to work the upper and lower abs and obliques‼️

    2