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Education 5 min read June 4, 2026

The Link Between Stress and Hormonal Imbalance

Written by SEDU Medical Board

The Link Between Stress and Hormonal Imbalance

Chronic stress can severely disrupt your endocrine system, leading to irregular cycles, mood shifts, and metabolic changes.

#### The HPA Axis and Cortisol

When stressed, the Hypothalamic-Pituitary-Adrenal (HPA) axis activates. This causes the release of cortisol. High cortisol suppresses the release of Gonadotropin-Releasing Hormone (GnRH) from the hypothalamus, leading to reduced LH and Progesterone.

#### Consequences of Stress on Your Cycle

  • Anovulatory Cycles: Ovulation does not occur, leading to missed periods.
  • Luteal Phase Defect: Insufficient progesterone causes a shortened luteal phase, impacting fertility.
  • Estrogen Dominance: Relative lack of progesterone can cause heavy bleeding, breast tenderness, and bloating.

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