Alcohol use and poor sleep quality: a longitudinal twin study across 36 years

This longitudinal twin study examined the relationship between alcohol use and sleep quality over 36 years. The findings show that heavy and binge drinking predict poor sleep quality over time, while the reverse (poor sleep leading to increased drinking) is not supported. The study found these associations were not entirely explained by shared familial or genetic factors. Poor sleep caused by heavy alcohol use may lead to chronic health risks such as metabolic, cardiovascular, and neurological disorders. The research highlights the importance of reducing alcohol consumption to protect sleep quality and overall health.

Limit alcohol intake, especially avoiding binge drinking, to improve sleep quality and reduce health risks. Develop healthier routines to unwind in the evening, such as engaging in relaxing activities or mindfulness practices. This recommendation is based on strong evidence from long-term observational data, but further experimental studies are needed to confirm causality and optimize interventions.