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Related Experiment Videos

Man in transit: Biochemical and physiological changes during intercontinental flights.

M Carruthers, A E Arguelles, A Mosovich

    Lancet (London, England)
    |May 8, 1976
    PubMed
    Summary

    Air travel significantly impacts stress hormones. Urinary levels of noradrenaline and adrenaline increased in passengers and crew during and after a long-haul flight, indicating a physiological stress response.

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    Area of Science:

    • Human physiology
    • Aerospace medicine
    • Stress response

    Background:

    • Long-duration flights can induce physiological stress.
    • Understanding the body's response to air travel is crucial for passenger and crew well-being.

    Purpose of the Study:

    • To investigate the physiological stress response in individuals during and after long-haul air travel.
    • To quantify changes in catecholamine excretion related to flight duration and conditions.

    Main Methods:

    • Studied 15 passengers and crew on a 20-hour flight from Buenos Aires to London.
    • Collected urine samples before, during, and after the flight.
    • Analyzed urinary excretion of noradrenaline and adrenaline, accounting for circadian variations.

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    Main Results:

    • A notable increase in urinary noradrenaline excretion was observed during the initial phase of the flight.
    • Urinary levels of both noradrenaline and adrenaline remained elevated for two days post-flight.
    • These changes suggest a sustained physiological stress response to air travel.

    Conclusions:

    • Long-duration flights trigger a significant stress response, evidenced by increased catecholamine excretion.
    • The physiological impact of air travel extends beyond the flight duration.
    • Further research could explore mitigation strategies for flight-induced stress.