This study evaluated the effects of alcohol consumption on sleep quality among 393 adults using the Alcohol Use Disorder Identification Test-Korean revised version (AUDIT-KR) and Pittsburgh sleep Quality Index-Korean version (PSQI-K). It found that men with higher alcohol use had worse sleep quality, including shorter sleep duration and more disturbances. Snoring frequency also increased with alcohol use. The correlation was weaker in women, likely due to lower alcohol consumption. These findings show how alcohol impairs sleep, potentially contributing to health risks like fatigue and cardiovascular problems.
To improve sleep quality, limit alcohol consumption, particularly before bed, as it worsens sleep duration and disturbances, especially in men. Combine this with healthy routines like regular exercise and managing stress. While the findings are observational and culturally specific, they provide strong evidence of alcohol's negative impact on sleep and its role in poor health outcomes.