For some, getting told that they have a ‘big head’ is not a compliment. They think that this is not something that they would be proud of. Well, this is going to change after you read this article.


If you have heard someone tell you that having a big head means you can fit a bigger brain, well, that is partly true!

According to research conducted by the UK Biobank, a large and long-term biobank study that started in 2017, they found out that babies who are born with big heads are more likely to be smarter. Now that is definitely something to be proud of, right?

The data that was used in the study was from a pool of 502,655 individuals whoa re between 37 to 73 years old. Physical assessments were done with the subjects. Blood, urine, and saliva samples were also gathered from 2006 to 2010 to support the data of this research. This study was published in the Molecular Psychiatry journal. It talks about the link between genes, IQ, and the overall health of a person.

While analyzing the gathered data, the results show that those who were born with big heads are more likely to show better intelligence later in life. There is evidence of these achievements like earning a college degree or scoring higher on a verbal-numerical reasoning test.

The study stated: “These results demonstrate substantial shared genetic etiology between brain size, cognitive ability, and educational attainment.”


But how will you know if you have a ‘big’ head? The study reveals that for babies, they are considered to have a big head if the head circumference is around 12.5 to 14 inches. They are the ones who will most likely be smarter than their peers.

However, aside from big heads, there are also other predictors of intelligence. The same study also found that the overall health of a person is also linked to his or her higher levels of intelligence. You also have to consider other factors like genetics, upbringing, parental education, as well as the overall environment that can influent the child’s level of intellect.

One of the researchers, Saskia Hagenaars, explained to The Independent that the study supports an existing theory which states that those with better overall health are likely to have higher levels of intelligence. Another unnamed researcher also noted, “Highly significant associations were observed between the cognitive test scores… and many polygenic profile scores, including intracranial volume, infant head circumference, and childhood cognitive ability.”

Aside from the UK Biobank research, there were also studies done in the past that found different ways to tell if your baby is a little genius in the making.


Some people believe that a good memory can be linked to being smarter later on in life. So if your child can remember past events, this can be an early sign of intelligence.

Other signs also include kids who prefer to hang out with older adults and poor sleepers.

So for any parent who is worried that their child might have a type of disability because of their larger head (12.5 to 14 inches), this is usually not true. But remember that an overly-sized head which is larger than 14 inches, it can be a sign of a more serious skull-related problem. If you are concerned, it is best to talk to your doctor.

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