Feeling older than your age? Experiencing memory lapses, low mood, poor stress resilience, or hormonal irregularities? These may all be signs of declining DHEA — a critical hormone that your body relies on to counterbalance the damaging effects of chronic stress. A simple salivary DHEA test can reveal whether your levels need attention.
DHEA — short for dehydroepiandrosterone — is often called the "anti-aging hormone." It is the most abundant steroid hormone in the human body and acts as a direct counteragent to cortisol, the primary stress hormone. DHEA plays a critical role not only in managing your body's response to stress but also in regulating immunity, hormonal balance, cardiovascular health, and cognitive function.
Unlike many hormones that fluctuate with daily activities, DHEA production follows a clear age-related decline — beginning around age 25 and falling progressively throughout life. Chronic stress dramatically accelerates this decline, making DHEA measurement a powerful marker of both biological age and stress resilience.
DHEA serves multiple vital functions across different physiological systems:
DHEA is a direct counteragent to cortisol. While cortisol is excitatory and promotes the body's stress response, DHEA is inhibitory — it balances and modulates the physiological impact of cortisol, protecting the body from the damaging effects of sustained high cortisol levels. In healthy individuals, a favourable DHEA-to-cortisol ratio is essential for managing stress without long-term harm.
Excitatory stress hormone
Elevated in chronic stress
Suppresses immunity
Promotes inflammation
Inhibitory buffer hormone
Declines with age & stress
Activates immune system
Anti-inflammatory
DHEA is a critical precursor molecule for the production of testosterone and oestrogen — the primary male and female sex hormones. This means that declining DHEA levels have a direct downstream impact on sexual health, libido, reproductive function, and menopausal symptoms in women.
In the vessel wall, DHEA inhibits the proliferation of smooth muscle cells — thereby counteracting the development of atherosclerosis (arterial plaque build-up). This gives DHEA a significant cardioprotective role, especially relevant in individuals with chronic stress who are already at elevated cardiovascular risk.
DHEA has a well-documented immunostimulatory effect. It activates the immune system and has anti-inflammatory properties, counterbalancing the immunosuppressive effects of chronically elevated cortisol. Individuals with low DHEA are therefore more susceptible to infections and inflammatory conditions.
DHEA has a significant influence on brain function. It plays a role in supporting memory, learning, and cognitive clarity. A decline in DHEA is associated with forgetfulness and difficulties in learning and concentration — symptoms that often appear years before more severe cognitive decline.
Because DHEA production declines predictably and continuously from age 25 onward, serum and salivary DHEA levels can be used as a reliable measure of biological age — independent of chronological age. Lower DHEA for one's age group is associated with accelerated aging and increased vulnerability to degenerative disease.
DHEA is synthesised primarily in the cortex of the suprarenal gland (adrenal cortex) from cholesterol, following the steroid biosynthesis pathway. A smaller proportion is produced in the gonads and brain (neurosteroid).
Like cortisol, DHEA exhibits a circadian (diurnal) rhythm — its concentrations differ between morning and evening. This is why the NeuroSpot test measures DHEA at two time points: 8:00 AM and 8:00 PM, giving a more complete picture of adrenal reserve and daily hormonal variation.
DHEA production peaks in early adulthood and then declines continuously throughout life. By age 70-80, DHEA levels are only a fraction of peak values. This natural reduction is considered one of the biological drivers of aging-related changes in the body, including:
Unlike adrenaline or cortisol, DHEA excess produces no known negative symptoms in clinical practice. The clinical concern is almost always deficiency. Symptoms of low DHEA include:
A critically important clinical point: when DHEA is deficient, it is no longer able to buffer the effects of cortisol. This means that even moderate cortisol levels can produce exaggerated stress responses and tissue damage — making DHEA deficiency a significant force multiplier for stress-related harm.
The primary driver of DHEA deficiency in otherwise healthy individuals is:
One of the most clinically meaningful ways to interpret DHEA levels is in relation to cortisol. The DHEA-to-cortisol ratio is considered a marker of the body's overall stress resilience and adaptive capacity.
| Clinical State | Cortisol | DHEA | Clinical Significance |
|---|---|---|---|
| Healthy (well-rested) | Normal | Normal | Good stress resilience |
| Acute stress | Elevated | Normal / slightly low | Body handling stress adequately |
| Chronic stress (early) | Elevated | Low | Buffer depleted — stress is harmful |
| Burnout / late-stage chronic stress | Low | Very low | Adrenal exhaustion |
Measuring both DHEA and cortisol — at matched time points — is therefore essential for a complete picture. The NeuroSpot profile captures this by measuring cortisol at 8:00 AM, noon, and 8:00 PM, and DHEA at 8:00 AM and 8:00 PM.
At DBAD, DHEA is measured via salivary sampling using Salivette® — a validated, patient-friendly collection system. While DHEA can also be measured in serum, saliva testing offers a key clinical advantage: it measures the biologically active, free fraction of DHEA, rather than the total (bound + free) fraction measured in blood.
The Salivette® device minimises the risk of sample contamination and leakage during transport. Materials used in the Salivette® have been tested and confirmed to be non-reactive with DHEA and cortisol — ensuring high-quality, reliable results.
Addressing DHEA deficiency requires a holistic approach targeting the root cause — almost always chronic stress — while simultaneously supporting the body's capacity for recovery. The NeuroSpot therapeutic concept recommends:
In cases where DHEA levels are severely depleted, naturopathic preparations and phytotherapeutic options may also be discussed with your healthcare provider.
A DHEA salivary test as part of the NeuroSpot profile is particularly valuable for:
