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Hormonal
DHEA-S
Dehydroepiandrosterone sulfate — the most abundant steroid hormone and a precursor to both testosterone and estrogen.
Optimal Range
200-400 μg/dL (age-adjusted optimal)
Why It Matters
DHEA-S declines steadily with age and is considered a biomarker of adrenal aging. Low levels correlate with increased mortality, immune dysfunction, and loss of vitality.