Long-haul flights are often associated with passengers drinking alcohol to help relax and fall asleep. However, a recent study has shown that this common practice may actually pose health risks, even for young and healthy individuals. The combination of alcohol consumption, sleep, and the low oxygen levels at high altitudes can have a negative impact on the cardiovascular system, leading to extended periods of hypoxaemia.
The researchers from the German Aerospace Center’s Institute of Aerospace Medicine and Aachen University recommend that airlines consider restricting the consumption of alcoholic drinks during flights. This is due to the fact that alcohol consumption can reduce sleep quality and exacerbate the decrease in blood oxygen saturation that naturally occurs at high altitudes. The effects of alcohol consumption during sleep on a flight can lead to a further decrease in blood oxygen levels, an increase in heart rate, and a reduction in deep sleep.
Effects on Young and Healthy Passengers
Even young and healthy passengers are not immune to the negative effects of alcohol consumption during long-haul flights. The study found that participants experienced clinically relevant decreases in blood oxygen levels and increases in heart rate while sleeping. These effects were particularly pronounced in individuals who consumed higher doses of alcohol. The combination of alcohol consumption and the reduced atmospheric pressure in aircraft cabins can escalate the risk of health complications and medical emergencies, especially for older passengers and those with pre-existing medical conditions.
Study co-author Eva-Maria Elmenhorst advised passengers to avoid consuming alcohol while flying in order to minimize the risks to their health. The researchers were surprised by the strength of the effects of alcohol consumption on sleep and blood oxygen levels during the flight. By refraining from alcohol consumption on long-haul flights, passengers can improve their sleep quality and reduce the strain on their cardiovascular system.
The study highlights the potential health risks associated with drinking alcohol on long-haul flights. Passengers, especially those with pre-existing medical conditions or older individuals, should be mindful of the impact that alcohol consumption can have on their cardiovascular system and overall health. By heeding the recommendations of the researchers and avoiding alcohol during flights, passengers can better protect their well-being while traveling.