N33 Nitric Oxide When you are doing crunches or situps, press your tongue to the top of your mouth. Pressing the tongue to the top of your mouth forces your neck muscles to engage and align properly while you work on your abdominal muscles. You can avoid harmful strains or injuries this way. ReadMore>>>_Website not available. Sign in: https://www.twine.net/signup_

jeremyclark

N33 Nitric Oxide When you are doing crunches or situps, press your tongue to the top of your mouth. Pressing the tongue to the top of your mouth forces your neck muscles to engage and align properly while you work on your abdominal muscles. You can avoid harmful strains or injuries this way. ReadMore>>>_Website not available. Sign in: https://www.twine.net/signup_

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N33 Nitric Oxide When you are doing crunches or situps, press your tongue to the top of your mouth. Pressing the tongue to the top of your mouth forces your neck muscles to engage and align properly while you work on your abdominal muscles. You can avoid harmful strains or injuries this way.
ReadMore>>>Website not available. Sign in: https://www.twine.net/signup

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