Alcohol is often seen as a means of temporarily escaping stress, of relaxing, or a way to more easily socialize with others. However, the impact of drinking alcohol runs deeper than many people realize. While a glass of wine or a night out might seem harmless, regular or heavy alcohol use can quietly (and sometimes loudly) reshape your emotional well-being.
In this blog post, I want to begin sharing information about how alcohol can impact our mental and emotional health, both in short- and long-term ways, to help others make more informed choices about their drinking and overall well-being.
The Short-Term Effects: Mood Shifts and Emotional Blurriness
In the short term, alcohol can feel like a mood booster. That’s because it causes an immediate release of the neurotransmitter dopamine- the brain’s “feel-good” chemical- in addition to other brain chemicals. However, these effects are short-lived, as alcohol is classified as a depressant, meaning it decreases arousal and stimulation by reducing activity in the brain.
Impaired Judgment and Emotional Instability
Alcohol affects the prefrontal cortex- the part of the brain responsible for decision-making and impulse control- which can lead to mood swings and poor decision-making during intoxication. It also dulls our reflexes, causes disinhibition (decreased ability to withhold inappropriate or unwanted behavior), and has been linked to the development of psychosis in some individuals.
Increased Anxiety (“Hangxiety”) and Depression
Many people experience a spike in anxiety after drinking—especially the next day. Alcohol disrupts neurotransmitter function, which can lead to a rebound effect once it wears off. While small amounts of alcohol may produce temporary relaxation effects, increased drinking actually depletes some of our neurotransmitters, often resulting in increased feelings of panic and tension.
Disrupted Sleep
Some people may find that alcohol seems to help them fall asleep more easily or more quickly, but it actually interferes with how their brain and body are supposed to function during a healthy sleep cycle. In the short term, alcohol interferes with our ability to stay asleep as well as with our ability to get high-quality, deep sleep.
The Long-Term Effects: A Slippery Slope for Mental Health
When alcohol use becomes frequent or excessive, its impact on mental health can be more severe and harder to reverse.
Higher risk for mood disorders
Regular alcohol use is associated with a higher risk of developing depression, increased depressive symptoms, and greater difficulty coping with anxiety. Over time, our brains may become less capable of managing stress without alcohol, leading to heightened levels of “baseline” anxiety. While it may provide some short-term, temporary improvements in mood, studies show that using alcohol to self-medicate often worsens pre-existing mental health conditions and can contribute to the development of new concerns.
Long-term Sleep Disruptions 
In addition to immediately interrupting the brain’s natural sleep cycle, alcohol use can negatively impact our sleep in other ways as well. Alcohol disrupts our sleep and can often leave individuals with insomnia, restlessness, and vivid or unsettling dreams. It can also aggravate symptoms of already-present sleep disorders, including sleep apnea, insomnia, and snoring.
Alcohol Dependence and Cognitive Decline
Long-term heavy drinking can lead to alcohol use disorder (AUD), characterized by compulsive use, difficulty stopping, and withdrawal symptoms. It also impairs cognitive functions like memory, attention, and decision-making. Alcohol has been shown to permanently alter some of our brain structures, including possibly shrinking the hippocampus and increasing the risk for developing Wernicke-Korsakoff Syndrome (aka Wet Brain). This condition develops as a result of poor nutrition and thiamine deficiencies, and can include symptoms such as persistent mental confusion, eye movement disturbances, difficulty with coordination, and persistent learning and long-term memory problems.
Increased Risk of Suicide and Self-Harm
Because alcohol reduces inhibitions and increases impulsivity, its use can lead to an increase in self-harm or suicidal behaviors, and has been linked to increased suicidal thoughts. Mid-to-long-term use or abuse of alcohol increases both the frequency and intensity of suicidal thoughts, making suicide attempts more likely and exacerbating other contributing risk factors.
What Can You Do?
If you’re concerned about how alcohol is affecting your mental health, you’re not alone—and there are steps you can take:
- Check in with yourself: Notice how you feel mentally and emotionally after drinking.
- Take breaks: Try a few alcohol-free days or weeks to see how your mood and sleep change.
- Talk to someone: A mental health professional can help you understand the link between your mental state and drinking habits.
- Know your limits: Set boundaries for yourself in social settings and learn to say no when needed.
Final Thoughts
Alcohol and mental health are deeply intertwined. While it may seem like a “harmless” way to unwind, regular alcohol use can significantly impact how you think, feel, and function- often in ways that go unnoticed until they become problematic.
Being mindful of your relationship with alcohol isn’t about shame or judgment—it’s about understanding how it affects your mind and choosing what’s best for your well-being.
Resources:
- https://americanaddictioncenters.org/alcohol/risks-effects-dangers/mental
- https://www.sleepfoundation.org/nutrition/alcohol-and-sleep
- https://www.mentalhealth.org.uk/explore-mental-health/a-z-topics/alcohol-and-mental-health
- https://www.alcoholhelp.com/resources/dual-diagnosis/alcohol-and-suicide/
About the Author:
Ashley Weber (she/her), M.A., LPCC-S, LICDC-CS is a Licensed Professional Clinical Counselor and Licensed Independent Chemical Dependency Counselor specializing in Dialectical Behavior Therapy. Ashley generally works with adults 18 and older in a supportive, accepting, and non-judgmental manner to help individuals explore, identify, and begin to implement the kind of changes each individual person believes they need to live a more fulfilling life while providing new tools and skills along the way. Click here to learn more about Ashley’s experience and therapeutic approach.