DHEA-S is often considered a marker of vitality because it reflects an important aspect of adrenal and hormonal health. Unlike cortisol, which rises and falls throughout the day, DHEA-S tends to remain relatively stable, making it a useful indicator of your body's long-term resilience and adaptive capacity. Healthy levels are associated with energy, recovery, physical performance, cognitive function, and overall well-being.

DHEA-S naturally declines with age, but factors such as chronic stress, poor sleep, overtraining, and lifestyle habits may accelerate this process. Monitoring DHEA-S can help provide insight into how well your body is coping with the demands of daily life and whether your hormonal environment is supporting optimal performance, recovery, and healthy aging. Tracking trends over time may reveal changes long before they become noticeable in day-to-day life.