Can too much running or stress stop your period? scientists investigate

NCT ID NCT05967819

First seen Jan 09, 2026 · Last updated May 14, 2026 · Updated 19 times

Summary

This study looks at how increasing exercise or adding mental stress might disrupt menstrual cycles in women who run or cycle regularly. Over about three months, participants either keep their normal routine, increase weekly mileage by 30%, do stressful thinking tasks, or both. The goal is to see if these changes affect key hormones and cycle length, helping explain why some active women miss periods.

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Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • University of Colorado Colorado Springs

    RECRUITING

    Colorado Springs, Colorado, 80918, United States

    Contact Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

Conditions

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