Based on existing research, this study aims to verify the MAOA uVNTR polymorphism frequency in an older adult population with DM/SAH in the Federal District, Brazil, associate this frequency with social characteristics that impact this population's daily life, and investigate the polymorphism distribution according to the Beck Depression Inventory-II (BDI-II) parameters [33, 34]. The gene discussed is MAOA; the disease is depressive symptom measurement.