Infidelity and Hormones: The Biological Connection

How hormones influence Infidelity — the key hormonal factors, life transitions, and what can help.

Hormonal systems profoundly influence infidelity. Understanding these connections helps explain the varied timing, patterns, and presentations of infidelity across the lifespan.

Key Hormones in Infidelity

Cortisol (the stress hormone): Chronically elevated cortisol from ongoing infidelity damages the hippocampus and dysregulates the entire stress response system.

Serotonin precursors: Hormonal fluctuations affect tryptophan availability and serotonin synthesis.

Estrogen and testosterone: Influence mood regulation directly and through effects on serotonin and dopamine systems.

Thyroid hormones: Thyroid dysregulation can mimic or worsen infidelity — always worth screening.

Life Transitions and Hormonal Infidelity

Hormonal transitions (puberty, postpartum, perimenopause, andropause) are high-risk periods for infidelity onset or worsening.

Addressing Hormonal Contributions to Infidelity

If hormonal factors contribute to your infidelity, treatment may include hormonal evaluation, targeted supplements, hormone therapy, or approaches that support hormonal regulation through lifestyle.

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