In some babies their head circumference can be related to intelligence.
Usually babies who have larger head sizes especially as they age tend to have a bigger brain which also means they are more intelligent.
But it doesn't always mean that if your baby has a larger head size that they will turn out to be much more smart later on in life.
Babies born with smaller head sizes have turned out to be pretty smart as well and sometimes smarter than babies with larger heads.
According to studies and science though the bigger head good brain development, good genes and overall growth.
Not everyone is as smart as others and that's okay as well as we are all born with different IQ's and can learn and know how to do different things.
For example my sister has completed college and is a nurse but I could never wrap my brain around all that stuff that it would require to be a nurse.
That's okay as not everyone is a fit for the same types of jobs.
Or another example some people can code websites and write computer code to make computers work but I sure couldn't and that's okay as well.