The average length for a newborn is 19 to 20 inches (in) (48.2 to 50.8 centimeters [cm]) from the top of the head to the heel of the foot, but this can vary. Doctors also consider a range of 18.5 ...

Microcephaly means "small head." It happens when a baby's brain stops growing or developing. WebMD explains what it is and how gene problems, alcohol, drugs, and infections play a role.

Brain growth charts of the functional connectivity within canonical functional networks during early childhood. Credit: Nature Human Behaviour (2025). DOI: 10.1038/s41562-025-02160-2 ...