Left-Handed
The dominance of one hand might always indicate automatically that the individual is smart; however, it could offer advantages. As a matter of fact, left-handed individuals might have the upper hand, pun intended, in receiving more cognitive advantages than their right-handed counterparts. A study done in Athens took one hundred participants, fifty were right-handed and fifty left-handed, and provided them with two cognitive tests.
One of the tests challenged the participants to construct a trail through a bunch of circles as fast as possible. While the other test included number-letter sequencing. The left-handed individuals outperformed the right-handed participants on each test. This suggested that they had stronger mental flexibility and working memory. Several experts suspect that these cognitive capabilities might be due to left-handed individuals being able to use both hemispheres of their brain in processing information.
Large Belly
Individuals overall well-being can be impacted on many levels by their body fat. It could have an effect on heart health, blood pressure, and even cognitive function. A study that lasted for five years and included over 2,200 individuals. Scientists discovered that individuals with a body mass index of twenty or less had the ability to recall fifty-six percent of words in a vocabulary test.
Whereas individuals that were obese only could recall forty-four percent. What is more, is that those obese individuals recalled even fewer words when they were retested after five years. This led experts to believe that fat hormone had the ability to damage the brain cells. Another possibility if that obesity is a cardiovascular risk factor, because of the hardening and thickening of the blood vessels, the same occurs with the arteries in the brain.
Large Heads
There is no one that likes to be known for a big head; however, actually having a big head might actually indicate intelligence. A study which was published in Molecular Psychiatry provided more than 500,000 individuals with physical and cognitive assessments. While doing this they also assessed their saliva, urine, and blood. Scientists discovered that individuals who had bigger heads as young children had higher tests scores on verbal-numerical reasoning. They were also more likely to receive a college degree.
