Flying isn’t just tiring—it can stress the body in real ways, with tips to guard your health midair
Air travel presents unique health risks due to cabin pressurization (up to 8,000 feet) that lowers available oxygen to about 15%, prompting faster breathing and higher heart rate, which can be dangerous for people with heart or lung disease. Low cabin humidity also causes dehydration, thickening blood and increasing the risk of clots and fainting. In-flight emergencies span range from GI issues to cardiac events, with fainting being common and cardiac incidents often more serious in the air. Practical tips include staying hydrated, taking medications on schedule, moving around every couple of hours, limiting alcohol, and avoiding recent dental work or diving before flying; landing decisions during emergencies depend on multiple factors.