Study suggests how harmful chemicals in plastic increase the risk of postpartum depression

Shockingly the chemicals present in plastic, like bisphenols and phthalates, can affect sex hormones in women and increase risk of postpartum depression.
New mothers can even go through postpartum depression. Image courtesy: Shutterstock
ANI Published: 6 Apr 2021, 10:01 am IST
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Women exposed to endocrine-disrupting chemicals commonly found in plastics during pregnancy are at a higher risk of experiencing postpartum depression, suggested a new study. The findings of the study were published in the Endocrine Society’s Journal of Clinical Endocrinology and Metabolism. The study also found that these harmful chemicals may influence hormonal shifts during pregnancy.

Here’s what the study has to say

Postpartum depression is a serious and common psychiatric disorder that affects up to 1 in 5 childbearing women. The cause of postpartum depression is not well understood, but hormonal changes during pregnancy have been found to be an important factor.

postpartum depression
Coronavirus is making postpartum depression worse in new mothers. Image courtesy: Shutterstock

Harmful chemicals such as bisphenols and phthalates that are found in plastics and personal care products are known to affect sex hormones.

“We found that phthalate exposure was associated with lower progesterone levels during pregnancy and a greater likelihood of developing postpartum depression,” said study author Melanie Jacobson, Ph.D., M.P.H. of the NYU Langone Medical Center in New York, N.Y.

Jacobson added, “This research is important because phthalates are so prevalent in the environment that they are detectable in nearly all pregnant women in the United States. If these chemicals can affect prenatal hormone levels and subsequently postpartum depression, reducing exposure to these types of chemicals could be a plausible avenue for preventing postpartum depression.”

The researchers measured the levels of bisphenols and phthalates in urine samples and sex hormones in blood samples from 139 pregnant women. They assessed these women at four months postpartum using the Edinburgh Postnatal Depression Scale (EPDS) and found women with higher levels of phthalates in their urine were more likely to develop postpartum depression.

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The women also had lower levels of progesterone, a hormone that plays an important role in the menstrual cycle, in maintaining the early stages of pregnancy and in modulating mood.

“These results need to be interpreted with caution as this is the first study to examine these chemicals in relation to postpartum depression and our sample size was small,” Jacobson concluded.

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