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Climate change could hurt babies' hearts: study

Climate change could hurt babies' hearts: study

PanARMENIAN.Net - Heat and pregnancy do not mix. High temps don't just make a pregnant woman uncomfortable, the heat can actually hurt the health of her baby -- and with climate change, this will probably become a bigger problem.

A study in Wednesday, January 30's Journal of the American Heart Association found that a larger number of babies will probably be born with congenital heart defects between 2025 and 2035 due to their mothers' exposure to higher temperatures, triggered by climate change, while pregnant. This especially holds true for moms who were pregnant through spring or summer.

Earlier research found that climate change could "halt and reverse" progress made in human health over the past century, but there's more limited research on the impact that has on pregnancy, the authors said. Congenital heart defects are the most common type of birth defects and can hurt a baby's overall health and potentially impact how their body works or develops.

"The potential increases in both the number of pregnant women and maternal heat exposure suggest an alarming effect that climate change may have on reproductive health," the study said.

Researchers figured this out by looking at data collected in the the National Birth Defects Prevention Study, a large multistate, population-based study that investigated risk factors for major structural birth defects. They also looked at climate data from the US government.

It's unclear what the link is between high temperatures and congenital heart problems. Animal studies found that heat can cause fetal cell death and can negatively impact the proteins that play a crucial role in fetal development.

This current research builds on earlier work that found when the temperature stays high, it can hurt a mother's chances of carrying a baby to term. Extreme heat also puts moms at risk to give birth early. Moms exposed to high heat have a bigger chance of having a baby that's small or underweight. Mothers who endure high temperatures early in their pregnancy have a much greater risk that their baby will have congenital heart problems, earlier research has found.

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