Flight crew members, including flight attendants and pilots, face a significantly higher risk of radiation-related cancers compared to those working with radioactive materials, as per a recent study.

The primary source of cosmic radiation is outer space, with a limited amount reaching the Earth’s surface. However, individuals flying at high altitudes are exposed to higher levels of this radiation.

Previous smaller studies have hinted at increased cancer death rates among frequent flyers, particularly pilots and flight attendants. The latest research, published in JAMA Internal Medicine, analyzed data from over 12 million death certificates, focusing on occupations and radiation-related cancer death rates.

The study revealed that among more than 500 different occupations, flight attendants had the highest percentage of radiation-related cancer deaths, followed by pilots. Both groups exhibited unusually high odds of dying from various radiation-related cancers, with no elevated rates in cancers not linked to radiation exposure.

The study challenges the belief that flight crews’ increased skin cancer risk stems from sunny layovers, emphasizing occupational radiation exposure as a key factor. The researchers noted that flight attendants had approximately 50% higher odds of dying from radiation-related cancers compared to the general working population, with pilots having about 36% higher odds.

While the study had limitations in measuring individual exposure levels, it underscored the need for awareness and monitoring of radiation exposure among aircrews. The Federal Aviation Administration acknowledged the exposure risk but does not establish federal dose limits or require monitoring.

Flight crew members, especially those working on high-altitude flights, may benefit from regular skin examinations and early or more frequent mammograms for women in these roles. Additionally, healthcare providers should maintain a heightened awareness for cancer when evaluating pilots and flight attendants due to their unique occupational risks.