NIH-funded research R01 grant

How climate and racial factors affect menstrual health

Official title: Climate factors, racial/ethnic disparities, and menstrual cycle health

Funded at Harvard School of Public Health · NIH-11009985 · Data updated 2026-11-12

This study is looking at how things like climate and air pollution might affect your menstrual cycle and the risk of conditions like PCOS, especially for different racial and ethnic groups, to help understand how these factors impact reproductive health.

More Menstrual Cycle research and trials

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionHarvard School of Public Health
NIH-funded
Lab location1 site (Boston, United States)
Project startApril 1, 2023
Project endJanuary 31, 2028
Funding year2025
Award (this year)$546,929
NIH project number5R01ES035106-03
Project IDNIH-11009985 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research include women of reproductive age, particularly those experiencing menstrual irregularities or diagnosed with PCOS.

Less likely to help

Patients who are not of reproductive age or do not experience menstrual cycle issues may not benefit from this research.

What this research studies

This research investigates how environmental factors, particularly climate and air pollution, influence menstrual cycle health and the risk of conditions like polycystic ovary syndrome (PCOS). It aims to understand the hormonal disruptions caused by these factors and how they may vary across different racial and ethnic groups. By examining the menstrual cycle as a marker of reproductive health, the study will collect data on hormone levels and menstrual patterns in diverse populations. The findings could help identify at-risk groups and inform public health strategies.

Why it matters

Potential benefit: If successful, this research could lead to improved understanding and management of menstrual health issues, particularly for women affected by PCOS.

How similar studies have gone: Previous research has shown that environmental factors can impact reproductive health, suggesting that this study's approach is both relevant and necessary.

Where this research is happening

  • Harvard School of Public Health
    Boston, United States
    Active

Researchers

  • Principal investigator: Mahalingaiah, Shruthi — Harvard School of Public Health
  • Study coordinator: Mahalingaiah, Shruthi

Related research

Other NIH-funded projects on the same topics.

  • Social media, mood, and teens: how the menstrual cycle affects rejection feelings and online experiences

    Teenagers using social media may feel stronger negative reactions to online feedback, especially around certain times in their menstrual cycle, which could relate to mood and depression.

    NIH research Univ of North Carolina Chapel Hill · Chapel Hill, United States · NIH-11438547

  • How menstrual-cycle hormones affect ADHD and thinking

    This project is looking at whether monthly hormone changes during the menstrual cycle change ADHD symptoms and cognitive function in adolescent and adult women.

    NIH research University of Kentucky · Lexington, United States · NIH-11392918

  • How climate and air pollution relate to menstrual health and PCOS risk

    This project looks at whether temperature, humidity, and air pollution across a person’s life affect menstrual cycles and the chance of developing PCOS in people of different racial and ethnic groups.

    NIH research Harvard University D/b/a Harvard School of Public Health · Boston, United States · NIH-11262320

  • Effects of ovarian hormones on mood and sleep in adolescent girls

    This study is looking at how changes in hormone levels during the menstrual cycle can affect mood and sleep in girls aged 11-14, to help understand why some may experience more sadness or sleep problems during this time.

    NIH research Emma Pendleton Bradley Hospital · Riverside, UNITED STATES · NIH-11053826

  • Understanding suicide risk in adolescent girls during their menstrual cycle

    This study is looking at how different stages of the menstrual cycle might influence suicidal thoughts and feelings in teenage girls, so we can better understand when they might be at greater risk and help support their mental health.

    NIH research Univ of North Carolina Chapel Hill · Chapel Hill, United States · NIH-11018611

  • How menstrual cycle phases affect risk-taking in women with opioid use disorder

    This study looks at how different phases of the menstrual cycle might affect decision-making and risk-taking in women with opioid use disorder, helping us understand how hormones like estrogen could influence their recovery and treatment.

    NIH research Rutgers Biomedical and Health Sciences · Newark, UNITED STATES · NIH-10997609

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.