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In line with this finding, GH receptor deficient mice have reduced relative liver weight[94], and transgenic mice overexpressing GH presented disproportional growth of the liver, whereas this is less apparent in mice overexpressing IGF-I[95, 96]

doi: 10.3126/nepjoph.v9i2.19261

Teresa True Oct 21, 2025 6 min read Updated: May 12 If your metabolism feels sluggish, or youre doing everything right but still not seeing results, theres often more going on beneath the surface

If an activated MTHFR gene is mutated, it produces a MTHFR enzyme that is off, and so on

Because these symptoms overlap with so many other things, they're easy to miss, which is part of why the post recommends regular medical check-ups to catch deficiencies early

This can be caused by wearing tight clothing, carrying a backpack, or playing sports while wearing a helmet