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Ashwagandha: modulation of HPA axis in menstrual and menopausal disorders
Article

Ashwagandha: modulation of HPA axis in menstrual and menopausal disorders

Introduction

Menstrual and menopausal disorders represent two critical phases of hormonal transition in a woman’s life, often characterized by neuroendocrine imbalance, psychological distress, and systemic physiological changes. Conditions such as dysmenorrhea, oligomenorrhea, premenstrual syndrome, perimenopausal anxiety, and vasomotor symptoms are increasingly linked not only to ovarian hormonal fluctuations but also to dysregulation of the hypothalamic–pituitary–adrenal (HPA) axis. Chronic stress and altered cortisol dynamics play a central role in exacerbating these conditions. In this context, adaptogenic herbs such as Ashwagandha (Withania somnifera) have gained attention for their ability to restore neuroendocrine balance and improve stress resilience.

Ashwagandha and the HPA axis: Mechanistic overview

The HPA axis is the primary neuroendocrine system regulating the body’s response to stress.

  • It involves coordinated activity between the hypothalamus (corticotropin-releasing hormone), pituitary gland (adrenocorticotropic hormone), and adrenal glands (cortisol secretion). Dysregulation of this axis leads to altered cortisol rhythms, increased sympathetic activation, and downstream effects on reproductive hormone balance, including estrogen and progesterone fluctuations.
  • Ashwagandha is classified as an adaptogen, meaning it enhances the body’s ability to resist physiological and psychological stress while maintaining homeostasis. Its primary bioactive constituents, withanolides, exert modulatory effects on stress-mediated neuroendocrine pathways. Experimental and clinical evidence suggests that Ashwagandha reduces elevated cortisol levels, stabilizes HPA axis activity, and enhances GABAergic signaling in the central nervous system, collectively contributing to anxiolytic and stabilizing effects.

Role in menstrual disorders

In menstrual disorders such as dysmenorrhea, oligomenorrhea, and premenstrual syndrome, HPA axis hyperactivation is often associated with increased prostaglandin release, heightened pain sensitivity, and emotional instability. Chronic stress can further disrupt gonadotropin-releasing hormone (GnRH) pulsatility, leading to irregular ovulatory cycles.

  • Ashwagandha’s ability to attenuate stress-induced cortisol elevation helps restore hypothalamic signaling and improve neuroendocrine rhythm. By reducing sympathetic overactivity and enhancing parasympathetic tone, it may indirectly contribute to improved menstrual regularity and reduced severity of dysmenorrhea-related pain perception.
  • Additionally, its anxiolytic properties help mitigate mood swings, irritability, and fatigue commonly associated with premenstrual symptoms.

Role in menopausal disorders

During menopause and perimenopause, declining estrogen levels coincide with increased vulnerability of the HPA axis to stress dysregulation.

  • This contributes to vasomotor symptoms such as hot flashes, sleep disturbances, mood instability, and cognitive complaints. Elevated cortisol levels have also been associated with worsening sleep quality and increased metabolic risk during this transition.
  • Ashwagandha has demonstrated potential in improving menopausal symptom clusters by modulating cortisol secretion and restoring neuroendocrine equilibrium. Its influence on GABA-mediated inhibitory pathways further supports improved sleep quality and reduced anxiety.
  • By stabilizing HPA axis output, Ashwagandha may help alleviate the intensity of vasomotor symptoms and improve emotional resilience in peri- and postmenopausal women.

Neuroendocrine integration and systemic effects

Beyond HPA axis regulation, Ashwagandha exhibits broader effects on the neuroendocrine system.

  • It supports thyroid function modulation, enhances mitochondrial energy production, and reduces oxidative stress—factors that collectively contribute to improved physiological adaptation during hormonal transitions.
  • These systemic effects are particularly relevant in women experiencing compounded stress from reproductive aging and psychosocial factors.

Clinical evidence and limitations

Clinical studies suggest that Ashwagandha supplementation is associated with reduced cortisol levels, improved stress scores, enhanced sleep quality, and better quality of life indices in women experiencing stress-related reproductive symptoms. However, variability in study design, dosage standardization, and population heterogeneity limits definitive clinical recommendations. Further large-scale randomized controlled trials focusing specifically on menstrual and menopausal populations are required to establish standardized therapeutic protocols.

Conclusion

Ashwagandha represents a promising adaptogenic intervention in the management of menstrual and menopausal disorders through its modulatory effects on the HPA axis. By restoring neuroendocrine balance, reducing cortisol dysregulation, and enhancing stress resilience, it addresses both the physiological and psychological dimensions of female reproductive health. While current evidence supports its therapeutic potential, further rigorous clinical research is necessary to fully integrate Ashwagandha into evidence-based strategies for managing hormonally mediated women’s health disorders.1,2

References:

  1. Namysl M, Matczak S, Dachowska S, et al. Withania somnifera in Women's Hormonal Modulation: A Narrative Review With Implications for Polycystic Ovary Syndrome and Premenstrual Syndrome. Cureus. 2026;18(1):e101431. Published 2026 Jan 13. doi:10.7759/cureus.101431 https://pmc.ncbi.nlm.nih.gov/articles/PMC12895992/
  2. Balkrishna A, Kukreti A, Sharma N, Srivastava D, Arya V. Efficacy and safety of Withania somnifera (Ashwagandha) in the management of menopausal symptoms. Pharmacol Res Nat Prod. 2025 Dec 25:100478. doi:10.1016/j.prenp.2025.100478. https://www.sciencedirect.com/science/article/pii/S2950199725003386