Image by Thorsten Frenzel from Pixabay
New Delhi: Drinking alcohol on airplanes is a luxury and many people enjoy this freebie that comes with the package of their ticket. For some people, it is an easy of getting sleep, while others say alcohol helps to reduce flight jitters.
A new paper published by researchers at the German Aerospace Center (DLR) and RWTH Aachen University, however, suggests that drinks in the clouds can pose significant health risks, particularly to older passengers or people with medical conditions, Hindustan Times reported.
The artificial pressure created in the aircraft cabin during the flight does not correspond to the air pressure at sea level, but rather an altitude of around 2,500 meters. That’s sort of like being at the peak of a mid-sized mountain. The higher the altitude, the lower the air pressure. The lower the air pressure, the lower the oxygen saturation in the blood. A healthy oxygen saturation sits at around 90%, according to the study, published in the journal Thorax. When it drops below that, the muscles and organs stop getting the amount of oxygen they need, because the body is trying to supply the oxygen it has to the brain.
This lack of oxygen can cause dizziness or nausea. Sensitive passengers may start to breathe more deeply or rapidly than normal. Oxygen deficiency can also occur if alcohol causes the heart rate to increase during sleep, according to the study.
For the study, the 48 test subjects were divided into two groups: one was examined in a sleep laboratory with normal ambient pressure, and another was examined in an altitude chamber featuring air pressure akin to that of an airplane cabin. Within each group, some test subjects drank alcohol before sleeping and others did not.
The study showed that the average heart rate of the drunk test subjects in the simulated aircraft cabin rose to 88 beats per minute while they slept. Their oxygen saturation fell to about 85%. Their average heart rates were higher than the participants in the control groups, and their oxygen saturation levels were lower.
The difference does not seem to be that serious at first glance. However, the negative effect was clearly observable even among the very young and healthy test subjects, the authors wrote. For older or ailing people, low oxygen saturation and a significantly increased heart rate can be life-threatening.
The results of the study indicate that alcohol consumption and sleeping while flying “represent a significant strain on the cardiac system, even in young and healthy people,” the authors wrote. And, in older people or those with heart or lung diseases, symptoms could be even more serious.
The researchers advocate changing the existing regulations on airplanes and limiting alcohol consumption on board, the report added.
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