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In this brief educational segment, the presenter explains why people supplement NAD+. He uses a money‑for‑electricity analogy, describing NAD+ as the currency that pays the body’s power bill. When NAD+ runs low, cellular energy production, DNA repair, and mitochondrial function falter, leading to accelerated aging. He cites a specific claim that by age 50, individuals retain roughly half the NAD+ levels they had at age 20, linking this decline to slower energy generation and reduced repair capacity.
