DHEA-S and the Adrenal Hormone Cascade
The adrenal glands produce DHEA and its sulfated form DHEA-S from cholesterol via the steroidogenic pathway. DHEA-S serves as a circulating reservoir that can be converted to DHEA and subsequently to androgens (testosterone, DHT) or estrogens (estradiol, estrone) in peripheral tissues through local enzyme activity. This provides tissues with on-demand sex hormone production independent of gonadal function. DHEA-S levels decline approximately 2-3% per year after age 25, and this decline correlates with age-related changes in body composition, immune function, bone density, and cognitive performance.
Longevity Marker
Higher DHEA-S levels consistently correlate with better health outcomes and longevity in population studies. It is sometimes called the longevity hormone.
Adrenal Stress Indicator
Chronically low DHEA-S can indicate adrenal fatigue or HPA axis dysfunction from prolonged stress.
Optimal DHEA-S Benchmarks
Common Questions
Should I supplement DHEA?
DHEA supplementation can be beneficial for those with documented low levels, but should be done under medical supervision with monitoring of downstream hormones (testosterone, estradiol) to avoid imbalances.
Why does DHEA-S decline with age?
The zona reticularis of the adrenal glands, which produces DHEA-S, undergoes progressive atrophy with aging. This process is called adrenopause and contributes to age-related changes in body composition and energy.