Substance guides

Alcohol and hormones: How drinking disrupts your endocrine system

Published November 13, 2024 · 7 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Alcohol disrupts multiple hormonal systems with effects that differ between men and women.

Testosterone

Heavy drinking reduces testosterone in men: decreased libido, erectile dysfunction, muscle loss, fatigue. The liver metabolizes both alcohol and testosterone using the same enzymes, prioritizing alcohol.

Estrogen

Alcohol increases estrogen levels in both sexes. In men: gynecomastia (breast tissue development). In women: increased breast cancer risk. Elevated estrogen contributes to alcohol-related weight gain.

Cortisol

Chronic alcohol use elevates cortisol (stress hormone). Produces anxiety, belly fat storage, immune suppression, and sleep disruption. Creates a paradox: people drink to relieve stress, but alcohol increases the stress hormone.

Recovery

Hormonal levels often normalize within weeks to months of abstinence. Testosterone recovery in men may take 3-6 months. Cortisol normalization within weeks.

Authoritative sources

This article references guidelines from: NIDA · SAMHSA · CDC

Frequently asked questions

Does alcohol affect hormones?

Yes. Alcohol disrupts testosterone, estrogen, cortisol, and other hormones with effects on sexual function, mood, weight, and cancer risk.

Does alcohol lower testosterone?

Yes in men. Heavy drinking reduces testosterone, causing decreased libido, erectile dysfunction, and muscle loss.

Do hormones normalize after quitting?

Typically within weeks to months. Testosterone may take 3-6 months for full recovery.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.