The quick-thinking dark-eyed individuals should thank the high levels of melanin in their brain. One study in the 1990s showed that people with dark eyes performed better on timed tests because they think faster. The more melanin in the brain, the quicker the brain works. In addition to the eyes, melanin is also found in the brain. Scientists claim that this could be a reason why people with dark eyes are less likely to become alcoholics. Because darker eyed individuals are more susceptible to alcohol, they do not need to drink as much to feel the effects. Melanin could also be the reason why people with darker eyes are more susceptible to alcohol. This explains why people with darker eyes are more susceptible to pain. Melanin is the pigment that makes eyes darker. Additionally, genes related to melanin are also related to pain. One of the proteins the NCX-4 gene controls is related to pain.
For example, the NCX-4 gene is related to darker eyes and controls many different proteins in the body. So how can the color of your eyes determine these traits? The answer: the genes that determine your eye color also impact how your body reacts to pain and alcohol.Įye color is based on 12 to 13 individual variations in people's genes, and these different genes server various functions in the body. Recent research out of the University of Pittsburgh touts how eye color is related topre-dispositional traits such as pain-tolerance and alcohol susceptibility. Your eyes may be more than just a window to your soul.
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