Pregnant women who sleep less than 7 hours a night may have children with developmental delays

Sept. 27, 2024
Study finds boys may be slower to develop their social, speech skills.

Pregnant women who do not get enough sleep may be at higher risk of having children with neurodevelopmental delays, according to new research published in the Endocrine Society’s Journal of Clinical Endocrinology & Metabolism.

Short sleep duration (SSD) is defined as sleeping less than seven hours per night. Pregnant woman may have trouble sleeping due to hormonal changes, pregnancy discomfort, frequent urination, and other factors.

The researchers analyzed sleep data from 7,059 mother-child pairs from 3 different hospitals in China. They screened the children for developmental delays from 6 months to 3 years old and analyzed the link between maternal sleep duration and neurodevelopmental delay risk. They also evaluated the role of cord blood serum C-peptide levels, which are a stable indicator of fetal insulin secretion.

The study found: 

  • Insufficient sleep during pregnancy may be associated with an increased risk of neurodevelopmental issues in children, affecting their cognitive abilities, behavioral development and learning capabilities.
  • Boys appear to be at a higher risk of neurodevelopmental delays when their mothers experience SSD during pregnancy, suggesting that gender plays a crucial role in offspring response to prenatal environmental factors.
  • SSD during pregnancy might affect the mother's glucose metabolism, thereby influencing the fetal development environment.
  • There may be a positive correlation between C-peptide levels in umbilical cord blood and neurodevelopmental delays in offspring, indicating that a mother's glucose metabolism during pregnancy may impact the insulin secretion of the fetus and, consequently, their neurodevelopment.

Endocrine Society release on Newswise