>>12627912>NeurologicNot sure, but I'm guessing something like healthy neurons and genes which allow neurons to digest nutrients efficiently.
>HormonalSimilar to above, since genes dictate how proteins/hormones are made.
>GeneticBasically already explained this.
>PhysiologicalGeneral health, low-normal blood pressure allows good blood flow to brain. Any physical abnormality or injury causing stress or pain is bad for the brain.
