DNA methylation and histone modifications are chemical tags that can switch genes on or off—like notes pinned to a life's instruction book. The Dutch Hunger Winter study suggested famine could leave such marks on children, maybe even grandchildren. But I'm skeptical it "proves" inheritance; life isn't that simple. Here, our elders fill the same pension forms yearly, their struggles unchanged by their parents' hardships—resilience is learned, not inherited in molecules.
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