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10th October 2021
07:30am BST

In comparison, during the summer months, people are more likely to just assume you are coping OK; hence often leaving new mums feel more abandoned and alone.
Dr Jie Zhou, from Brigham & Women's Hospital in Boston, was one of the lead researchers in the Harvard study, which reviewed the medical records of 20,169 women who had babies between June 2015 and August 2017, and explained her team's findings this way: "We wanted to find out whether there are certain factors influencing the risk of developing postpartum depression that may be avoided to improve women's health both physically and mentally," she explains. "We have a few theories. Delivery will typically confine mothers to indoor activities with the newborn babies. It is naturally occurring for postpartum women in winter. Holiday season in the winter is very enjoyable." Another explanation for the seasonal dip in baby blues could be down to something as simple as Vitamin D levels. "Literature has linked postpartum depression to Vitamin D," Zhoe explains. "Its storage may deplete in a few months without proper supplement or sun exposure, which could be related."Explore more on these topics: