This temporary suppression can make us more vulnerable to infections, as our bodies struggle to combat pathogens during this period. Additionally, excessive alcohol consumption can weaken the body’s natural defense mechanisms, such as the mucous membranes in the respiratory and gastrointestinal tracts. This weakening of the protective barriers can further increase the risk of infections. One of the significant long-term effects of alcohol on the immune system is an increased susceptibility to infections. Alcohol impairs the body’s ability to defend against pathogens, making it easier for infections to take hold.
TFH Cell Responses
Serotonin is the so-called “feel-good” neurotransmitter responsible for feelings of happiness and motivation. Quitting alcohol is incredibly challenging, but absolutely critical if you want to preserve your health. It may seem impossible to break this cycle of addiction and protect your well-being at the same time. Ardu is here to guide you through alcohol detox, help you manage cravings, and build skills for long-term recovery. To put the brakes on uncontrolled fire in your body, the immune system releases other chemicals and prevents damage—while still allowing helpful inflammation to neutralize the threat. Adaptive immunity remembers previous offenders so it can quickly round them up if they sneak back in.
Respiratory infections and distress syndrome
The liver’s ability to detoxify the body diminishes with chronic alcohol use, which can result in a buildup of toxins that may exacerbate existing health issues. The liver’s ability to detoxify the body diminishes with chronic alcohol use, which can result in a buildup of toxins that may exacerbate existing health issues. Additionally, disregarding the specificity of the innate immunity, the influence of alcohol-induced oxidative stress on cardiovascular system has to be https://ecosoberhouse.com/ considered as well.
Mental health

Concentrations of 100 mmol/L correspond to blood alcohol levels of approximately 0.4 percent, which are sometimes seen in alcoholics after acute alcohol consumption. The following example may help illustrate some of the complex Sober living house interactions that take place during an immune response. When a person sustains a small injury, such as a cut, bacteria can enter the body and the bloodstream through the wound. Phagocytes (e.g., monocytes and neutrophils) patrolling the blood encounter some of these bacteria; identify them as foreign to the body; and engulf, ingest, and destroy them. During the intracellular breakdown of the ingested bacteria, the phagocytes generate small proteins or protein fragments that serve as antigens. The phagocytes display these antigens on their cell surface, together with certain of their own proteins known as major histocompatibility complex (MHC) proteins.
Does Alcohol Weaken Immune System? Understanding the Impact on Our Health
Active IKKα ensures the processing of p100 and is followed by translocation of p52–RelB heterodimer into the nucleus to finally modulate NF-κB gene expression 47. Additionally, IKKα phosphorylates NIK and is thereby regulating itself via a negative feedback loop 47. By adhering to these guidelines, you can reduce the detrimental effects of alcohol on your immune system. It’s important to note that these guidelines may vary based on individual factors, such as body weight, metabolism, and overall health. Individual variations how does alcohol affect the immune system in response to alcohol can also influence the impact on the immune system.
- Cytokines can also modulate important behavioral functions including learning and memory (Hao, Jing et al. 2014) possibly due to their role in neuroplasticity (Sheridan, Wdowicz et al. 2014).
- The immune system is a complex network of cells, tissues, and organs that work together to protect the body from harmful pathogens, such as bacteria, viruses, and parasites.
- But just like a muscle, the immune system can become weak and fail to protect you against infection as well.
- Whereas T-cells are primarily involved with cell-mediated immunity, B-cells play a major role in humoral immunity.
Consequences of Alcohol’s Effects on the Immune System

Opsonization is a process by which a pathogen or other antigen is covered with antibodies and thereby marked for ingestion and destruction by other immune cells (i.e., phagocytic cells). Chronic alcohol consumption decreases the number of circulating T cells, increases the number of activated T cells, accelerates differentiation of T cells to a memory phenotype, and interferes with thymocyte development. Alcoholics may be especially unlikely to cooperate with treatment if they perceive medical staff as a threat to their drinking—a likely scenario given the dangers of combining TB medication with alcohol.
Innate Immunity Factors—Preserved through Time
- The experienced team at Golden Gate Recovery is dedicated to helping individuals achieve lasting sobriety and rebuild their lives.
- The adaptive immune system can be subdivided into cell-mediated immunity, carried out by T cells, and humoral immunity, carried out by B cells.
- Within the GI tract, alcohol exposure can also alter the number and abundance of microorganisms present within the microbiome, all of which play an important role in normal GI function.
Early studies already had indicated that chronic alcohol abuse (i.e., for 12 to 15 years) resulted in reduced numbers of peripheral T cells (Liu 1973; McFarland and Libre 1963). More recent studies confirmed this observation and showed that the lack of lymphocytes (i.e., lymphopenia) was as severe in people who engaged in a short period of binge drinking as it was in individuals who drank heavily for 6 months (Tonnesen et al. 1990). Interestingly, abstinence for 30 days was sufficient to restore lymphocyte numbers back to control levels (Tonnesen et al. 1990).
- Cytokines are affected by alcohol on several levels as they are induced by certain pathways affected by alcohol, which again, in turn, can be modulated by other cytokines.
- In this post, we will delve into the relationship between alcohol and immune function, exploring both short-term impacts and long-term consequences.
- Excessive drinking suppresses your immune system and weakens key immune cells that combat infection.
- Similarly, alcoholics exhibited an intact T-cell–independent antibody response after administration of a specific antigen.
Interactions With Autoimmune Disease Medications
Similar results have been seen in SIV infection of male nonhuman primates (Bagby, Stoltz et al. 2003, Molina, McNurlan et al. 2006, Poonia, Nelson et al. 2006, Marcondes, Watry et al. 2008). Alcohol modulates the function of nearly all components of the innate immune system, but the specific effects on inflammatory cell responses depend on the pattern of alcohol exposure (i.e., acute or chronic). In human monocytes or mouse macrophages, acute alcohol results in a decrease in TLR responses (i.e., TLR tolerance), which attenuates particularly production of the TNFα in response to a subsequent LPS stimulation (Bala et al. 2012; Mandrekar et al. 2009).

In other words, each T cell or B cell can be activated only by one specific antigen. An antigen-specific T-cell response is initiated by interactions between antigen presenting cells (such as DCs) and naïve T cells and is optimized by engagement of co-stimulatory molecules and cytokines for antigen-specific T-cell activation (Mogensen 2009; Newton and Dixit 2012). The initial activation triggers a memory response in the form of memory B cells that remain in the circulation for long periods and can respond quickly when they encounter that antigen a second time to mount a stronger, more rapid response. Alcohol is a widely available dietary factor in our society and its pro-inflammatory effects and end-organ damage are well documented at high doses.7 However, alcohol’s role in inflammation and autoimmunity at moderate doses has been relatively less well understood. Consistent or heavy drinking can impair immune cell function and disrupt the balance of inflammation and cell repair. Chronic alcohol intake lowers lymphocyte counts, reduces white blood cell effectiveness, and increases the risk of bacterial and viral infections.
Ethanol may be detrimental to immune cells due to the generation of free radicals during clearance; however, alcoholic beverages containing antioxidants should be protective against immune cell damageReference Percival and Sims27, Reference Fenech, Stockley and Aitken28. In animal models, the consumption of ethanol only led to lower levels of white blood cells; however, the same amount of alcohol consumed as red wine resulted in no suppression of the immune response. This could be due to the action of certain compounds in red wine that could be contributing to prevent suppression of the immune system caused by alcoholReference Percival and Sims27. Similarly, wine intake, especially red wine, has been identified as having a protective effect against the common coldReference Takkouche, Regueira-Mendez, Garcia-Closas, Figueiras, Gestal-Otero and Hernan29.
For those who have a risk factor for COVID-19, like heart disease or diabetes, he recommends drinking even less. According to the Cleveland Clinic, once you take a sip of alcohol, your body prioritizes breaking down alcohol over several other bodily functions. The body doesn’t have a way to store alcohol like it does with carbohydrates and fats, so it has to immediately send it to the liver, where it’s metabolized.