Flight crews face increased cancer risk from cosmic radiation

A study published in JAMA Internal Medicine indicates that flight attendants and pilots face a higher risk of death from radiation-related cancers than professionals who work directly with radioactive materials. Analyzing over 12 million death certificates in the United States, researchers found that cosmic radiation, which is more intense at high altitudes, increases the likelihood of developing leukemia, lymphoma, multiple myeloma, and various tumors, including skin, breast, thyroid, prostate, and central nervous system cancers.

Flight attendants showed approximately a 50% higher chance of dying from radiation-linked cancers compared to the general workforce, while pilots faced a 36% higher risk. The study noted that these specific groups showed no abnormal mortality rates for cancers not related to radiation exposure, supporting the hypothesis that occupational exposure, rather than lifestyle or socioeconomic factors, is the primary cause.

Vishal Patel from Harvard Medical School noted that while the Federal Aviation Administration recognizes ionizing radiation exposure, it does not currently establish dose limits or require monitoring. Experts suggest that crew members should undergo annual dermatological exams and early mammography screenings to mitigate risks.