Apparently, according to a new study from Washington University in St. Louis, having a bigger brain could actually mean you’re smarter.
The study found brain size accounts for 6.7% variance in intelligence. In other words, it plays a role. The study went on to measure the strength of neural connections between the left prefrontal cortex (right behind your forehead) and the rest of the brain. The strength of this area leads to a 10% difference in intelligence. In other words, the stronger your connections here… the higher your IQ.