These observations have sparked interest among researchers and psychologists, as children’s cognitive development is a crucial factor in shaping their future.
To address these questions, experts have conducted extensive research and surveys to identify the factors influencing children’s cognitive development.

Are Babies Born via C-section or Natural Birth Smarter?
From a brain development perspective, a child’s intelligence is not directly linked to their birth method. Instead, cognitive development relies on various factors such as maternal health during pregnancy, genetic predispositions, nutrition, educational environment, and other influences.
There are clear medical indications for performing a C-section. For instance, if vaginal birth poses a risk to the mother’s or baby’s life, or in cases of fetal macrosomia, abnormal fetal position, preeclampsia, or antepartum hemorrhage, a C-section is often the safer choice.
However, these decisions should be carefully evaluated by medical professionals. Choosing a C-section should be based solely on clear medical indications and not on reasons unrelated to health.
Otherwise, it may lead to unintended risks for both mother and child, causing more harm to the child’s body and health in the early years. Therefore, mothers should heed the advice of experts to ensure the best possible start for their children’s health.
Is It Better to Give Birth During the Day or at Night?
Research suggests that there are notable differences between babies born during the day and those born at night. The American College of Obstetricians and Gynecologists conducted a survey of 429 women’s childbirth experiences and found that the average duration of labor for night births was approximately 40 minutes longer than for day births.
Longer labor durations increase health risks for mothers. Compared to day births, night births showed a 26% higher likelihood of childbirth complications, impacting both maternal health and child safety.
A mother’s health status during labor is closely linked to the time of day. During the day, mothers tend to be in better physical condition due to optimal support from medical staff.
In contrast, at night, many healthcare personnel from various departments have finished their shifts, leaving only a small number on duty. This reduction in staff can hinder efficient medical support, and in emergency situations, performing detailed checks on mother and child may become more challenging.
Research indicates notable differences between day and night births.
Does Birth Weight Reflect IQ?
Aside from birth method and timing, birth weight is another significant concern for many parents.
While there is a correlation between birth weight and IQ, it is not the sole determinant of cognitive development. Other factors, including maternal health, dietary habits during pregnancy, and genetics, can also influence weight.
Mothers who maintain a healthy diet and take good care of their health during pregnancy will positively impact their children’s development.
According to the “Reference Standards for the Growth and Development of Children Under 7 Years Old in China,” the normal weight range for baby boys is approximately 2.62 to 4.12 kg, while for baby girls, it is 2.57 to 4.04 kg.
While birth weight is associated with IQ, it is not the sole factor.
Infants weighing less than 2.5 kg are typically considered premature and may require incubation for careful health monitoring. Conversely, infants weighing over 5 kg are considered macrosomic and may face health issues or complications during care.
Although birth weight can influence brain and body development, the most critical factor is the care and nurturing provided by parents after birth.
Love, support, and a positive educational environment contribute to a child’s overall well-being and intelligence. Therefore, in addition to focusing on weight, timing, and birth method, parents should strive to create a solid foundation for their children’s holistic development.