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Ashwagandha and Cortisol: How Adaptogens Help the Body Handle Stress
Stress is often spoken about as an emotional or psychological experience, but in the body it unfolds as a complex biochemical cascade that touches nearly every system. At...
Stress is often spoken about as an emotional or psychological experience, but in the body it unfolds as a complex biochemical cascade that touches nearly every system.
At the center of this response is cortisol, the body’s primary stress hormone. Cortisol helps mobilize energy, and prepare the body to respond to challenges. In the short term, allows us to react quickly, think clearly, and access energy when we need it.
The problem arises when the stress response never fully turns off. When the nervous system remains in a constant state of alertness, cortisol can stay elevated for long periods. Over time this can affect sleep, energy, mood, and hormonal balance.
This is where herbal medicine offers us a different way of thinking about stress. Rather than forcing the body into sedation, certain plants appear to help the body adapt.
One of the most well known of these plants is ashwagandha.
Ashwagandha: An Ancient Stress Tonic
Ashwagandha (Withania somnifera) has been used in Ayurvedic herbalism for thousands of years. Traditionally it is classified as a rasayana, a category of herbs believed to nourish vitality, strengthen resilience, and support longevity.
Herbalists have long used ashwagandha when the body appears depleted by chronic stress. Patterns such as exhaustion, anxious restlessness, poor sleep, and nervous system fatigue often point toward the need for deeper restoration rather than stimulation.
In modern herbal language, ashwagandha is considered an adaptogen.
Adaptogens are herbs that help the body adapt to stress by supporting the systems that regulate the stress response.
The root contains compounds known as withanolides, which appear to influence hormonal signaling, nervous system activity, and inflammatory pathways. These compounds may help explain why this traditional herb continues to attract scientific interest. (1)
Understanding Cortisol and the Stress Response
When the brain perceives stress, it activates a communication network known as the hypothalamic pituitary adrenal axis, often shortened to the HPA axis. This system signals the adrenal glands to release cortisol.
Cortisol prepares the body for action. It increases alertness, mobilises glucose for energy, and temporarily shifts the body into survival mode.
This response is useful when facing immediate challenges. However, when stress becomes constant, the body can remain stuck in this heightened state.
Persistently elevated cortisol can gradually disrupt sleep patterns, increase anxiety, destabilise blood sugar, and contribute to the deep fatigue many people experience today.
How Ashwagandha Supports the Stress Response
Ashwagandha has been studied for its ability to support the body’s regulation of cortisol.
Clinical research suggests that people taking standardised ashwagandha extracts often experience reduced perceived stress and lower cortisol levels compared with placebo groups. (2)
Rather than simply suppressing cortisol and stress symptoms, adaptogenic herbs appear to support the body’s feedback systems, helping bring the stress response back into balance.
This is one of the reasons herbalists value adaptogens so highly. Instead of forcing the body in a particular direction, they appear to help the body find equilibrium again. (3)
Ashwagandha and the Nervous System
Ashwagandha is also known for its calming influence on the nervous system.
Research suggests the herb may support GABA signaling, one of the brain’s primary calming neurotransmitters. GABA slows neural activity and allows the nervous system to shift out of a state of constant stimulation. (4)
When the nervous system begins to settle, people often notice improvements in:
- Sleep quality
- Anxiety levels
- Mental clarity
- Emotional resilience
This dual action supporting both the hormonal stress response and the nervous system is one reason ashwagandha is so widely used in herbal practice.
Stress and It’s Domino Effect
Stress rarely affects only one system. Cortisol interacts with thyroid hormones, blood sugar regulation, reproductive hormones, and the sleep cycle. When the stress response remains activated, these systems can begin fall out of balance.
This is why stress often appears as a constellation of symptoms like fatigue, cravings, irritability, disrupted sleep, and hormonal fluctuations often appear together, rather than a single complaint.
Supporting the stress response can therefore have ripple effects across multiple areas of your health.
Herbal Support for Stress Resilience
Adaptogenic herbs like ashwagandha offer a bridge between ancient herbal traditions and modern stress physiology.
Jennah Organics Hormone Support includes a powerful dose of ashwagandha extract alongside other botanicals traditionally used to support hormonal balance and the body’s response to stress.
