Do you feel out of place if you do not travel? If you do not push the boundaries?
Well, now, scientists have discovered a genetic variation called DRD4-7R. This gene variation occurs in about 20 per cent of the human population. It affects dopamine levels in the brain and it makes you curious.
National Geographic cites multiple studies showing that migratory populations are more likely to have certain variants of DRD4 than more sedentary populations.
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