According to Travel + Leisure, a sense of wanderlust could run in your genes. Studies show that there is a specific variant of the DRD4 gene that could explain the urge to travel. This is because it codes for a certain type of dopamine, which causes a tendency to engage in more impulsive behaviors. This type of dopamine has also been tied to peoples addictions and gambling.
An anthropologists from Binghamton University, J. Koji Lum explains that the , “DRD4 is one gene and, of course, its contribution to any complex behavior is going to be small. But those small differences add up. To a certain extent, assessing risk is just running an algorithm in your head. The different genetic variants mean that algorithm is running at slightly different levels in different people. That’s where all of this comes together: people are running slightly different algorithms that help define whether or not they will take a risk. And, ultimately, over time, that one small difference in the algorithm ends up in very different lives lived.”
So if you are one of those people who itch to get out and travel the world, it could possibly be due to your biological makeup.