For instance, reduced zinc transporter‐3 (ZnT3) expression or mutations of this gene, which is responsible for loading zinc into presynaptic vesicles in the hippocampus, have been associated with the onset of cognitive decline and accelerated brain aging, ultimately impairing learning and memory functions (Adlard et al., 2010; Saito et al., 2000). Here, SLC30A3 is linked to Mental deterioration.