The VMAT1 gene evolved through natural selection in human evolution. Those with the Ile-type variant of the VMAT1 gene are less prone to anxiety and depression.
Evolutionary changes in neurotransmitter uptake of VMAT1 may be responsible for higher levels of anxiety.
Researchers have identified a gene that has evolved through natural selection and is implicated in psychiatric disorders and personality traits. The study suggests natural selection has helped shaped our psychiatric traits and helped to maintain human diversity.
