Episode 5: Alcohol and Mental Health Explained - The Hidden Effects of Alcohol

Alcohol is often framed as a way to relax, cope, or “take the edge off”, but what is it actually doing to our mental health?

In this episode, we take a deep, evidence-based look at how alcohol impacts depression, anxiety, stress regulation, and the brain’s reward system. We break down how drinking can interfere with neurotransmitters like serotonin and dopamine, disrupt the HPA axis and stress hormones, worsen depressive symptoms, and contribute to post-drinking anxiety (“hangxiety”). We also explore why alcohol can feel temporarily relieving in the moment while making mood, motivation, and emotional regulation harder over time.

We review current research on alcohol use and depression, including how even low to moderate drinking may complicate recovery, increase symptom severity, and raise the risk of alcohol use disorder, especially when alcohol becomes a coping strategy for stress or low mood. We also discuss emerging research on the gut–brain connection, neuroinflammation, and how alcohol-related changes in the microbiome may further influence mental health.

Finally, we talk about what it can look like to reevaluate your relationship with alcohol in a compassionate, non-all-or-nothing way. We cover sober-curious approaches, recognizing triggers, building alternative coping tools, and supporting mental health without shame or moralization.

This episode is for anyone navigating depression or anxiety who wants to understand how alcohol may be affecting their mental health.

Time stamps:

00:00 Intro/Welcome

1:43 Alcohol Trends, Stigma, and Statistics

17:10 Diving into the research. Alcohol and its effect on neurotransmitters and reward pathways

25:29 HPA axis activation

33:22 A look at the microbiome

36:39 Summarizing the research

38:11 A conversation on Alcohol Use Disorder

44:49 Tips for if you consider cutting back

55:48 Final thoughts

Research:

1. Gallup Poll: https://news.gallup.com/poll/693362/drinking-rate-new-low-alcohol-concerns-surge.aspx

2. Alcohol Consumption by State: https://worldpopulationreview.com/state-rankings/alcohol-consumption-by-state

3. Defining Risky Drinking and the impact of drink size: https://pmc.ncbi.nlm.nih.gov/articles/PMC3860565/

4. Alcohol Use Among Depressed Patients: https://pmc.ncbi.nlm.nih.gov/articles/PMC2874911/

5. Non-Linear Relationships in the Associations of Depression and Anxiety with Alcohol Use: https://pubmed.ncbi.nlm.nih.gov/10824662/

6. Decrease in circulating tryptophan availability to the brain after acute ethanol consumption: https://pubmed.ncbi.nlm.nih.gov/8614707/ 885/

7. Anhedonia and Substance Dependence: https://pmc.ncbi.nlm.nih.gov/articles/PMC3089992/

8. Drug use and the risk of major depressive disorder, alcohol dependence, and substance use disorders: https://pubmed.ncbi.nlm.nih.gov/12418937/

9. The effects of alcohol on anxiety-like, depression-like, and social behavior immediately and a day after binge drinking: https://www.sciencedirect.com/science/article/pii/S0741832923002215?via%3Dihub

10. Binge alcohol drinking elicits persistent negative affect in mice: https://www.sciencedirect.com/science/article/abs/pii/S0166432815300267

11. Chronic alcohol exposure induced gut microbiota dysbiosis in mice: https://iubmb.onlinelibrary.wiley.com/doi/abs/10.1002/biof.1469

12. The Role of Inflammation in Depression and Fatigue: https://pmc.ncbi.nlm.nih.gov/articles/PMC6658985/

13. Gut microbiota regulates chronic ethanol exposure-induced depressive-like behavior: https://www.nature.com/articles/s41380-022-01841-y

Disclaimer:

This podcast is for educational and informational purposes only and is not a substitute for medical advice, diagnosis, or treatment. Listening does not establish a provider–patient relationship. Always consult a qualified healthcare professional for personalized guidance.