Eldest Daughter Syndrome Linked to Mom’s Stress During Pregnancy: UCLA Study Reveals Surprising Findings

Los Angeles, California – Eldest daughters with younger siblings often find themselves shouldering the burden of household responsibilities, from babysitting to providing parental care. This phenomenon, known as “eldest daughter syndrome,” has long been a topic of discussion among first-born girls who feel overwhelmed by the expectations placed upon them.

Recent research conducted by UCLA has shed light on the potential biological underpinnings of eldest daughter syndrome. The study suggests that maternal stress, depression, and anxiety during pregnancy may play a role in shaping a first-born daughter’s development and maturity. By analyzing data from a 15-year longitudinal study of mother-child pairs, researchers found a correlation between high levels of prenatal distress in mothers and early signs of adrenal puberty in their first-born daughters.

Lead researcher Molly Fox, an anthropologist at UCLA, emphasized the importance of understanding the long-lasting impacts of prenatal emotional factors on women and their offspring. The study also highlighted how eldest daughters often feel compelled to take on the role of caregiver in response to childhood adversity, such as parental separation or the absence of a father.

While eldest daughter syndrome is not recognized as an official mental health diagnosis, its effects can be profound and life-altering. Experts have noted that first-born girls may exhibit traits of diligence and a drive for excellence, which can stem from their early caregiving responsibilities within the family dynamic.

Psychologist Kati Morton has further explored the signs of eldest daughter syndrome in a popular TikTok video, which has garnered millions of views. These signs include feelings of intense responsibility, perfectionism, anxiety, struggles with setting boundaries, resentment towards family members, and challenges in forming healthy adult relationships.

The findings from UCLA’s research add to the growing body of knowledge surrounding the psychological and biological factors that influence a child’s development within their family structure. Understanding the complexities of eldest daughter syndrome can provide valuable insights for healthcare providers and policymakers working to support the well-being of pregnant mothers and their children.