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Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
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Related Experiment Video

Updated: Feb 16, 2026

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
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Circadian Rhythms and Athletic Performance.

Joseph LaDou

    The Physician and Sportsmedicine
    |December 20, 2017
    PubMed
    Summary

    Traveling across time zones negatively impacts athletic performance. Learning to resynchronize your internal body clock is crucial for athletes to maintain optimal performance levels.

    Area of Science:

    • Sports Science
    • Chronobiology

    Background:

    • International travel disrupts the circadian rhythm, commonly known as the body clock.
    • This disruption can negatively affect an athlete's physical and cognitive performance.

    Purpose of the Study:

    • To explore the impact of time zone travel on athletic performance.
    • To provide insights into resynchronizing the body clock for athletes.

    Main Methods:

    • Review of existing literature on circadian rhythm disruption and athletic performance.
    • Analysis of strategies for mitigating jet lag effects.

    Main Results:

    • Significant performance decrements observed in athletes following transmeridian travel.
    • Individual variability in adaptation to circadian misalignment.

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    Conclusions:

    • Effective body clock resynchronization is vital for athletes competing across time zones.
    • Further research into personalized strategies for circadian adaptation is warranted.