Little research on interactional effects of hypertension and TBI (Traumatic Brain Injury) are available. Given these limitations this research studied nonamnestic cognitive decline in terms of executive functioning. Specifically this study investigated the effects of hypertension on executive functioning in patients with TBI compared to those without TBI. The first conceptual independent variable was cardiovascular health. The second conceptual independent variable was TBI. The dependent variable for this study was executive functioning.