Several studies suggest that variations in our dopamine D4 receptor gene (DRD4) influence whether we vote red or blue. Dopamine is a key neurotransmitter in the brain, associated with our reward ...

The National Library of Medicine (NIH) states that some gene variations seem to be specifically connected to temperament, including: Variants in the DRD2 and DRD4 genes, associated with a drive to ...

This 2020 research review honed in on DRD4 7R, a genetic variant that researchers say may be linked to ADHD symptoms and novelty-seeking, greater food and substance-use cravings. Among their ...