Study Links the Heatwaves to Increase in Early Births of Babies
A new study examining 53 million births over 25 years in the United States has found that early births become slightly more frequent during hotter, longer heatwaves. The study, conducted by University of Nevada epidemiologist Lyndsey Darrow and colleagues, analyzed national birth records between 1993 and 2017 across the 50 most populous metropolitan areas in the US.
The research reveals that pregnant individuals, along with newborns and infants, are particularly sensitive to extreme heat, as they cannot cool themselves down as effectively as others. This vulnerability is similar to that seen in the elderly. As heatwaves in the US have become 24 percent more intense and are occurring twice as often as in the 1960s, the researchers found a small increase in daily rates of preterm births (...
