Consider a genetic difference known to be linked to a behavioural difference (e.g. the MAO-a gene is linked to antisocial behaviour,

Consider a genetic difference known to be linked to a behavioural difference (e.g. the MAO-a gene is linked to antisocial behaviour, the DR2 taq1a allele is linked to addiction, the 5-HTT gene is linked to major depression, etc.). Do some independent research to find out what the gene actually does (in the body/brain) and then “design an environment” that would likely lead to the most optimal behavioural outcome for a person living with the genetic difference that you have chosen to investigate.