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Lyndsey Darrow鈥檚 groundbreaking research on heatwaves and prenatal health gains national attention

School of Public Health researcher examines the impact of high-intensity, long-duration heatwaves on pregnancy outcomes across the U.S.

Lyndsey Darrow's headshot.

Lyndsey Darrow鈥檚 groundbreaking research on heatwaves and prenatal health gains national attention

School of Public Health researcher examines the impact of high-intensity, long-duration heatwaves on pregnancy outcomes across the U.S.

Lyndsey Darrow's headshot.

With the frequency of heatwaves rising across the United States, a study led by Professor Lyndsey Darrow from the School of Public Health has drawn national attention for its findings on the effects of extreme heat on prenatal health. Conducted in collaboration with researchers from institutions such as the National Center for Atmospheric Research, Yale University, Rollins School of Public Health and the University of Utah, Darrow's research reveals a strong correlation between heatwaves and an increase in preterm and early-term births.

The study highlights that heatwaves, defined by high temperatures sustained over long durations, pose several health risks including dehydration and elevated stress levels. Darrow explained that, "small increases in the rates of preterm and early-term births occurred immediately following heatwaves, with greater increases seen after longer or hotter heat events." Of particular concern, the research found that these effects were more pronounced among certain subgroups such as younger women and those with lower educational attainment.

"Even with the widespread use of air conditioning in the U.S., some pregnant individuals are unable to fully avoid the heat and experience adverse effects on their pregnancies," Darrow said.

The consequences of extreme heat exposure during pregnancy can lead to a range of complications for both mother and baby during and after delivery.

Darrow’s research has been widely recognized, making headlines in over 60 national news outlets. In response to this recognition, Dean Muge Akpinr-Elci of the School of Public Health commented, “Dr. Darrow's new publication on the impact of heatwaves on expectant mothers is groundbreaking. Through her research, she has provided essential insights into the risks of preterm delivery and early-term birth during extreme heat, offering valuable guidance for expectant mothers and healthcare professionals. We are incredibly proud of her accomplishments and the positive impact her work is having on public health.”

Raising awareness about the potential health risks of heatwaves during pregnancy could help healthcare providers and expectant mothers, especially those from socioeconomically disadvantaged groups, better prepare and take preventive measures. Darrow underscored that pregnant individuals should avoid prolonged heat exposure, especially in late pregnancy. However, she acknowledged that for some, "this is easier said than done," noting that those working in outdoor environments, with unreliable access to air conditioning or who cannot afford adequate cooling measures on extreme heat days are particularly vulnerable.

For more information on the impact of heatwaves on prenatal outcomes, .

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