Study links heavy drinking to worse depression after trauma
Korean researchers found that people who drink heavily or show alcohol dependence report more severe depressive symptoms after unexpected traumatic events such as accidents or crimes.
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People who drink heavily or show signs of alcohol dependence experience more severe depressive symptoms after unexpected traumatic events such as traffic accidents or crimes, a new study has found.
A research team including Jeon Sang-won and Cho Sung-joon, professors in the Department of Psychiatry at Kangbuk Samsung Hospital, and resident physician Moon Ji-wan analyzed data from 8,432 Korean employees who had undergone mental health screenings at the hospital’s workplace mental health institute, the hospital said Wednesday.
The researchers divided the participants’ life stressors into four broad categories: unexpected events such as traffic accidents, crimes and safety incidents; illnesses affecting the participants or their family members; conflicts with other people; and workplace pressures.
They then examined how strongly each type of stress was associated with depressive symptoms, and whether that link varied with the amount of alcohol consumed or degree of alcohol dependence.
Unexpected traumatic events showed the largest gap in depressive symptoms tied to alcohol use, among all the stressors studied. Even among people who experienced the same type of traumatic event, those who drank more or showed stronger signs of alcohol dependence reported more severe depressive symptoms. The gaps linked to drinking were relatively smaller for illnesses, interpersonal conflicts and workplace stress.
The researchers explained that when a sudden, uncontrollable event such as a traffic accident or crime causes psychological trauma, turning to alcohol to cope with the distress may hinder recovery. The study identified an association between alcohol use and depressive symptoms, but did not establish that drinking directly causes depression.
“Drinking immediately after a traumatic event may seem to ease physical and psychological pain in the short term,” Jeon said. “In the long term, however, it can weaken the brain’s neurobiological resilience and its ability to regulate stress, worsening depressive symptoms.”
The findings indicate that people who experience traumatic events need support that helps them recover without relying on alcohol.
“People who experience unexpected events need counseling, healthy stress management and programs that intervene early when drinking problems emerge,” Cho said.
The study, titled “Life Stressors and Depressive Symptoms: The Moderating Roles of Alcohol Consumption and Age,” was published in the international journal Brain Sciences (2025).
BY RHEE ESTHER [[email protected]]
This article was originally written in Korean and translated by a bilingual reporter with the help of generative AI tools. It was then edited by a native English-speaking editor. All AI-assisted translations are reviewed and refined by our newsroom.
