SAEDNEWS: A report published in Molecular Psychiatry on 500,000 people shows that individuals with larger heads scored higher on cognitive tests and earned better grades in college.
According to a report by Saed News, citing Borna News Agency, the brain isn’t the only part of the body that can indicate intelligence. Other physical traits may also offer clues.
A study at Brown University and Princeton University proposed the theory of “tall people are smarter.” This theory is based on data showing that taller individuals tend to earn more than shorter ones. Researchers analyzed government data on weight, height, intelligence, education, and income of people in the U.S. and U.K., following participants from birth (1958–1970) into adulthood.
The findings suggest that taller individuals are more likely to pursue higher-paying jobs, even if those jobs require specialized skills. Psychological tests conducted alongside the data also supported this trend. While the link between height and intelligence is still under investigation, evidence indicates a direct relationship between genetics, early childhood development, and cognitive ability.
Being left- or right-handed is not a matter of choice—it is determined by brain structure inherited through our genes. The preference usually becomes clear the first time a person holds a pencil to draw, reflecting which hemisphere of the brain is more active. Both hemispheres have unique strengths.
A study at Athens University tested 100 students and graduates (half left-handed, half right-handed) with psychological assessments. Left-handed participants generally performed better, demonstrating superior memory and cognitive flexibility. Researchers concluded that left-handed individuals tend to utilize both hemispheres of their brains more effectively.
High body fat has multiple effects on health, including blood pressure, heart health, and brain function. A five-year study of 2,200 adults found that those with a BMI between 18.5 and 24.9 remembered more words than participants with a BMI over 30.
Dr. Maxim Kornat proposed a theory that fat hormones may harm brain health, similar to how excess fat damages heart arteries, potentially reducing cerebral blood flow.
A larger head may also be associated with higher intelligence. Research published in Molecular Psychiatry analyzed 500,000 people and found that individuals with larger heads scored higher on cognitive tests and achieved better academic performance in college. Genetics play a role in this trait, and medical researchers continue to investigate the connection.
