The Hangover as Mirror

The anxiety that rides in on a hangover is not a neurochemical side effect. It is the disclosure of an emotional disorder that drinking was designed to conceal. A Catholic anthropological reading, drawing on Aquinas's account of the passions and the AA recovery tradition, argues that the morning after is an invitation to formation, not merely a condition to be managed.

May 28, 20267 min read

The cruelest part of heavy drinking is not the headache. It is the dread that arrives before you have fully remembered why you should feel it — a diffuse, sourceless anxiety that colors the morning gray before any particular regret surfaces. Millions of people recognize this sensation, and the New York Times piece that prompted this essay correctly notes that alcohol disrupts the emotional regulation systems of the brain. What the medical framing leaves aside is the more searching question: what does this emotional disorder reveal about the person who experiences it? A Catholic anthropological reading, grounded in Aquinas's account of the passions and the Alcoholics Anonymous recovery tradition, suggests that the hangover is not merely a neurochemical event. It is a disclosure. The disordered emotional state that follows drinking makes visible a disorder that drinking was, in part, designed to conceal.

The thesis is precise: alcohol does not create emotional chaos so much as expose it. The morning anxiety, the irritability, the flattened capacity for joy — these are the passions reasserting themselves once the pharmacological suppression has worn off. They are, in the language of the CCMMP, symptoms of concupiscence operating below the threshold of rational governance. That is not a moralistic judgment. It is a description of how the appetitive dimension of the person functions when its coordination with reason and will has been temporarily severed and then abruptly restored.

What alcohol actually does to the passions

Aquinas understood the passions — fear, desire, joy, anger, sorrow — as movements of the sensitive appetite that are, in themselves, morally neutral and indeed good. They become disordered only when they are no longer integrated with reason and will. Alcohol produces exactly this kind of temporary disintegration. The GABA and glutamate systems that modulate arousal are first suppressed and then rebound sharply, which is why the night feels expansive and the morning feels constricted. But the neurochemical story is a mechanism, not a meaning.

The AA literature names the meaning with unusual candor. The Big Book states that alcoholics have drunk to drown feelings of fear, frustration, and depression, and to escape the guilt of passions.[^1] The Twelve Steps and Twelve Traditions extends this: living with fear and tension inevitably results in wanting to ease that tension, which alcohol seems to do temporarily.[^2] What is striking about these formulations is that they describe drinking as a response to a prior emotional state, not merely as a cause of subsequent ones. The passions are already disordered; the drinking is an attempt at self-medication for that disorder.

The AA sources carry a particular pastoral weight because they come from people who have lived inside the pattern rather than observed it clinically. The Step Four inventory is essentially an examination of which instincts — security, sex, social standing — have been running wild[^1] and producing the fear and resentment that drinking then tries to dissolve.

The body remembers what the will suppressed

Gabor Maté, writing on addiction from a trauma-informed developmental perspective, argues that the compulsion to use substances is almost always preceded by emotional pain that the person has no other tools to process.[^3] His framework — rooted in attachment theory and the neurobiology of stress — locates addiction in the gap between what the nervous system needs and what early relational experience provided. The morning-after anxiety is, on this reading, not a new problem introduced by alcohol. It is the old problem surfacing again, slightly amplified, once the chemical buffer has been removed.

The Catholic anthropological tradition supplies a structural account of why that gap exists. The unity of body and soul, a foundational premise in Vitz, Nordling, and Titus's meta-model, means that emotional disorder is never merely psychological or merely somatic — it is always a disorder of the whole person. The anxiety that rides in on the hangover is not confined to the brainstem's GABA rebound. It passes through memory, imagination, and the cogitative sense — that faculty, described by Benjamin Suazo in his account of Thomistic psychology, which appraises particular things as helpful or harmful to the concrete individual. When the cogitative sense has been shaped by habitual suppression of fear rather than habitual facing of it, the morning reasserts everything that was suppressed at once.

Temperance is not abstinence — it is integration

The cultural framing of temperance as mere abstinence misses what Aquinas actually meant. Temperance, for Aquinas, is the virtue by which the concupiscible appetite is ordered: not deadened, but brought into proportion with right reason. Its opposite is intemperance, which is the condition in which bodily desires operate independently of rational governance. The emotional chaos of the hangover is, phenomenologically, an experience of intemperance — not just from the night before, but from whatever habitual patterns led there.

This matters pastorally because the standard secular advice — drink less, hydrate, get sleep — addresses the mechanism while leaving the person's relationship to their own emotional life untouched. Formation in temperance is a different kind of work. It involves, as Aquinas describes in the Summa Theologiae I-II, the gradual reordering of the sensitive appetite through repeated acts that align desire with reason. This is not willpower in the colloquial sense. It is the development of a stable disposition — a second nature — that no longer requires brute suppression because the appetite itself has been educated.

The hangover's emotional volatility is not a side effect of a good time. It is a portrait of the self that certain habits of drinking have been constructing, rendered visible for one morning before the next round of suppression begins.

What the morning anxiety is asking

Benedict Groeschel, in his account of the spiritual passages that structure the Christian life, noted that the purgative way frequently involves exactly this kind of uncomfortable encounter with one's own disordered affections. The discomfort is not pointless suffering. It is the beginning of self-knowledge, which is a precondition of growth. The morning anxiety, in this frame, is an invitation — not to shame, but to the kind of honest inventory that the AA Step Four process formalized and that the Catholic examination of conscience has practiced for centuries.

The Big Book's description of the alcoholic who uses his gifts to build up a bright outlook for his family and himself, and then pulls the structure down on his head by a senseless series of sprees,[^1] is, at its core, a description of a person whose rational and volitional capacities are intact in most domains of life but have been progressively isolated from the domain of drinking. This is not a moral failure of a different kind from other moral failures. It is a particularly visible form of the fragmentation that occurs whenever a powerful appetite operates outside the governance of reason and will — the same fragmentation, in a milder register, that produces ordinary irritability, reactive emotion, and the low-grade anxiety that many people manage with a glass of wine at night.

Formation, not just information

What the New York Times article provides — the expert explanation of GABA rebound and cortisol spikes — is genuinely useful. Understanding the mechanism reduces unnecessary shame and supports informed choices. But mechanism-level knowledge does not produce temperance. The person who knows exactly why they feel dreadful on Sunday morning and continues the pattern has not been transformed by that knowledge; they have only been better informed about their captivity.

Formation in temperance begins with the recognition that the passions are good — that fear, desire, and sadness are not to be eliminated but educated. The AA literature, whatever its theological limitations, grasps this: its inventory process is not an exercise in self-condemnation but in honest perception of which desires have been running without rational governance and at what cost to the person and those around them.[^2] Catholic accompaniment can receive that insight and locate it within a richer anthropology — one in which the goal is not merely sobriety but the integration of the whole person, body and soul, passion and reason, desire and will, into the kind of ordered freedom that Aquinas called the life of virtue.

The morning after heavy drinking is an experience of the self without its defenses. What it reveals is worth attending to — not with dread, but with the honest, unhurried attention that genuine growth requires.

[^1]: Alcoholics Anonymous, Alcoholics Anonymous: The Big Book, 4th ed. (New York: AA World Services, 2001).

[^2]: Alcoholics Anonymous, Twelve Steps and Twelve Traditions (New York: AA World Services, 1952).

[^3]: Gabor Maté, In the Realm of Hungry Ghosts: Close Encounters with Addiction (Toronto: Knopf Canada, 2008).