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Epigenetic Influences

Meaning

Epigenetic influences are stable, heritable changes in gene expression that occur without altering the underlying DNA sequence itself, acting as a crucial regulatory layer above the genome. These modifications, which include DNA methylation and histone acetylation, determine whether a gene is actively transcribed or functionally silenced in a given cell type. Environmental exposures, dietary factors, and circulating hormonal status can profoundly impact these mechanisms, providing a tangible link between lifestyle choices and long-term health trajectory.