What psychosocial aspect has been linked to a higher incidence of hyperemesis gravidarum?

Mixed feelings about the pregnancy have been linked to a higher incidence of hyperemesis gravidarum, which is a severe form of nausea and vomiting during pregnancy. This condition is thought to be influenced by psychosocial factors, where uncertainty or ambivalence about the pregnancy can manifest in increased stress and anxiety levels. Such emotional turmoil may affect the physical well-being of the pregnant individual, potentially exacerbating symptoms of nausea and vomiting.

In contrast, feeling certain about the pregnancy, having a supportive family environment, and previous experiences with uncomplicated pregnancies generally contribute to a more positive psychosocial state and are associated with lower levels of stress and anxiety. This positivity can help mitigate symptoms of hyperemesis gravidarum, illustrating the important interplay between emotional health and physical symptoms during pregnancy.