Hormonal Health Stress Hormones & Adrenal Health
Cortisol

Cortisol.
The Stress Hormone.

Essential for survival in short bursts — but chronically elevated cortisol disrupts nearly every system in the female body, from mood and sleep to weight, periods and immunity.

Produced by the adrenal glands
Follows a daily diurnal rhythm
Essential for acute stress response
Regulates metabolism & sleep
Suppresses reproductive hormones
Chronic elevation is harmful
Overview Cortisol Adrenal Health Stress & Hormones Burnout & Hormones
What Is Cortisol?

Cortisol is a steroid hormone produced by the adrenal glands, which sit atop the kidneys. It is the body's primary stress hormone, released in response to physical or psychological challenges via the hypothalamic-pituitary-adrenal (HPA) axis. Cortisol follows a diurnal rhythm — it is highest in the early morning (helping you wake and feel alert) and lowest at night (allowing sleep). This daily cycle is one of the most important rhythms in the body, and disruptions to it have wide-ranging consequences for health.

What Cortisol Does in the Body

In the short term, cortisol is essential and life-sustaining. The problem arises when the stress response is chronically activated.

Mobilises glucose for energyAcute
Increases alertness & focusAcute
Temporarily suppresses digestion & immunityAcute
Reduces acute inflammationAcute
Drives abdominal fat storageChronic
Suppresses oestrogen & progesteroneChronic
Disrupts sleep architectureChronic
Degrades muscle tissueChronic

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Cortisol and Women's Health: What You Need to Know

Of all the hormones that affect women’s health, cortisol is perhaps the most underestimated. While oestrogen and progesterone receive most of the attention, cortisol sits at the top of the hormonal hierarchy — and when it is chronically elevated, it quietly disrupts virtually every other hormone in the body.

The problem is that the modern world keeps many women in a state of near-constant low-grade stress. The HPA axis responds the same way to psychological stress as it does to physical threat — and sustained activation has serious consequences for reproductive hormones, sleep, body composition, immunity and mood. If you suspect cortisol dysregulation is affecting your health, HealthLab’s directory can connect you with an appropriate specialist in South Africa.