Why are newborn babies' heads large?

Patient's question:

Today I visited my former colleague. She just gave birth yesterday, but I noticed that her baby's head seems a bit larger than other babies' heads. I want to ask why newborn babies' heads are large.

Doctor's answer:

Developmental imbalance, many moms believe that a baby's body should develop uniformly in all parts, but this idea is completely wrong. Because during the fetal period and infancy, the development of the baby's brain tissue will far outpace other parts of the body, and the development speed of different body parts is also not the same. For example, although the development speed of the baby's limbs is slower than that of the brain, the upper limbs develop faster than the lower limbs. Overall, the baby will appear to have a large head and a small body.

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