👶 Why Do Some Babies Have a Full Head of Hair While Others Are Bald? Every time I hold a newborn, I’m amazed by how different they are. Especially their hair — some babies have just a fine fuzz, while others look ready for their first haircut. Most people think it’s all genetics. But the truth is even more fascinating! The amount of hair a newborn has is actually linked to the mother’s hormone levels during pregnancy. Estrogen — a key female hormone — influences not only fetal development but a