A recent study by the German Aerospace Center’s Institute of Aerospace Medicine and Aachen University has shown that consuming alcohol before sleeping on a long-haul flight can pose health risks to passengers, even if they are young and healthy. The combination of alcohol consumption, sleep, and the low oxygen levels at higher altitudes can challenge the cardiovascular system and lead to low oxygen levels in the blood. Researchers recommended that airlines restrict in-flight alcohol consumption to improve passenger safety and sleep quality.
The study found that inflight sleep already decreases blood oxygen saturation due to the reduced atmospheric pressure in aircraft cabins. When combined with alcohol consumption, participants in the study experienced further decreases in blood oxygen saturation, increased heart rates, and reduced deep sleep. The researchers were surprised by the strength of these effects and recommended against consuming alcohol while flying.
Even young and healthy participants in the study experienced clinically relevant decreases in blood oxygen saturation and heart rate accelerations during sleep. The study concluded that higher doses of alcohol could amplify these effects, potentially increasing the risk of health issues and medical emergencies during flights, particularly for older individuals and those with pre-existing medical conditions. Airlines should consider implementing restrictions on alcohol consumption to ensure the safety and well-being of their passengers.
