The sleep center team at Asia University Hospital in South Korea has confirmed that continuous positive airway pressure (CPAP) devices can not only improve sleep apnea, but also promote alcohol breakdown after drinking, reduce the risk of accumulation of carcinogenic acetaldehyde, and significantly improve sleep quality. This study provides a scientific basis for the health management of the drinking population, and the relevant results have been published in the new issue of Scientific Reports. The team conducted an experiment on 53 adults who frequently drink alcohol and suffer from obstructive sleep apnea, analyzing the concentrations of ethanol and acetaldehyde in their blood and exhaled breath through four different sleep tests (whether they drink alcohol or use CPAP equipment). The results showed that the experimental group using CPAP equipment had a 21% increase in acetaldehyde decomposition rate during sleep compared to the group not using it. Acetaldehyde, as a toxic byproduct of alcohol metabolism, is not only the main cause of hangovers, but also listed as a class of carcinogens by the World Health Organization, closely related to the risk of diseases such as liver cancer and stomach cancer. The team stated that the decomposition of acetaldehyde relies on aldehyde dehydrogenase, and the activity of this enzyme is closely related to the oxygen content in the body. Sleep apnea patients experience delayed acetaldehyde metabolism due to nocturnal hypoxia and restricted aldehyde dehydrogenase function. CPAP devices continuously provide positive airway pressure to ensure smooth breathing and sufficient oxygen supply, thereby activating aldehyde dehydrogenase and accelerating the clearance of toxic substances. The study also found that using CPAP devices after drinking alcohol can restore the incidence of sleep apnea to normal levels, significantly improve sleep structure, increase the proportion of deep sleep, and reduce the number of nighttime awakenings. The Korean industry believes that this study is the first to reveal the role of CPAP devices in alcohol metabolism at the mechanistic level, providing evidence-based guidance for sleep apnea patients, especially those who drink alcohol. (New Society)