What happens to our bodies when we fly?
When flying, our bodies experience significant changes due to the jet’s pressurization, which is not set to sea level but rather to an equivalent of 6,000-8,000 feet. Consequently, the oxygen levels in our blood decrease. While most travelers will not notice this change at rest, individuals with chronic medical conditions may experience shortness of breath during flights.
Those suffering from cardiac or pulmonary issues, such as coronary artery disease or chronic obstructive pulmonary disease (COPD), should consult their healthcare providers before traveling to discuss the potential need for supplementary oxygen.
Moreover, reduced oxygen levels, low humidity, and prolonged sitting in cramped quarters can lead to fatigue, headaches, back pain, and an overall irritable mood. Long flights, such as from Newark, New Jersey, to Singapore (an exhausting eighteen and a half hours), can further intensify these symptoms.
What are the best strategies to alleviate discomfort during flights?
To minimize stress during air travel, consider treating the entire journey as an endurance athletic event. Here are some effective practices:
- Sleep whenever possible.
- Stay hydrated by drinking plenty of water.
- Avoid alcoholic beverages.
- Wear comfortable clothing.
- Stretch and walk around regularly.
Do people cry more when they’re on planes?
The answer is yes. Many travelers report tearing up during emotional movies, and this phenomenon may be linked to the reduced oxygen levels in the blood, which can amplify emotions and influence decision-making.
Is it possible to avoid jet lag entirely?
One way to sidestep jet lag is to travel north or south instead of east or west. Since there are no time changes when flying within the same time zone, routes like Vancouver to Baja California, New York to Lima, or London to Ghana can help travelers avoid the disorienting effects of jet lag.
Is melatonin a viable option to eliminate jet lag?
The use of melatonin for jet lag is a polarizing topic. Some individuals report a decrease in jet lag symptoms; however, melatonin is a hormone that can affect various body functions. Currently, there is a lack of comprehensive studies examining its efficacy and side effects on large groups of international travelers. Therefore, many experts do not endorse its use, arguing that the effectiveness of melatonin remains unproven.
Considering that jet lag typically resolves naturally within a few days without treatment, avoiding any drug intervention may be a prudent choice. It is important to note that in the United States, melatonin is sold mostly through health food stores and lacks FDA regulation, which can lead to variability in potency across different products.
Medical researchers often differentiate between jet fatigue and jet lag. Jet fatigue generally resolves after a single night’s sleep, while jet lag can persist for several days. Although melatonin might lessen jet lag symptoms, it is unclear whether this is due to its sleep-inducing properties or its hormonal effects. Additionally, it is advisable for children and pregnant women to avoid melatonin usage.
Dr. Sanford is the author of Staying Healthy Abroad: A Global Traveler’s Guide.
