---
title: Did COVID-19 lockdown change menstrual cycle length and sleep?
description: Yes, lockdown was linked to changes in menstrual cycle length for most women, and these changes reversed when lockdown ended. Sleep duration increased during
url: https://niyora.com/research/papers/changes-in-menstrual-cycle-length-and-in-sleep-wake-behaviors-during-covid-19-2023/
---

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- Did COVID-19 lockdown change menstrual cycle length and sleep?

Survey study, 2023

# Did COVID-19 lockdown change menstrual cycle length and sleep?

Yes, lockdown was linked to changes in menstrual cycle length for most women, and these changes reversed when lockdown ended. Sleep duration increased during lockdown but was not linked to menstrual cycle changes.

 Early or limited evidence

97 women in their fertile years in Israel

## What they did

97 women in their fertile years in Israel tracked their menstrual cycles and sleep using a fertility tracking device. Data were collected before, during, and after the COVID-19 lockdown.

## What they found

Lockdown was linked to changes in menstrual cycle length in most women, with either increased or decreased length. These changes reversed when lockdown ended. Sleep duration increased during lockdown. No relationship was found between sleep changes and menstrual cycle changes.

## What it means for you

Stress from lockdown appears to have affected menstrual cycle timing, but it is not clear why some women's cycles became longer and others shorter. The findings are limited to one country and women who used fertility tracking devices.

97

women tracked their cycles

## About the study

Original title Changes in menstrual cycle length and in sleep-wake behaviors during COVID-19 related lockdown in Israel Authors Lan A, Ron T, Stukalin Y et al. Journal Health care for women international Year 2023 Study design Survey study Participants 97 Read the paper [doi.org/10.1080/07399332.2023.2183206](https://doi.org/10.1080/07399332.2023.2183206)

## Topics

[Sleep and insomnia](https://niyora.com/research/topics/symptom-sleep/)[Stress](https://niyora.com/research/topics/symptom-stress/)[Relationships and partners](https://niyora.com/research/topics/life-area-relationships/)

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