Preventing age-related cognitive decline may require a dual approach targeting both physical fitness and cardiovascular health simultaneously. While individual interventions have shown promise, this combination strategy could represent a more robust defense against mental deterioration in healthy older adults. This 24-month randomized trial examined 648 older adults without dementia across four US clinical sites, comparing aerobic exercise training, intensive vascular risk reduction through medication, combined interventions, and usual care. Participants had hypertension, family dementia history, or subjective cognitive concerns. The intensive vascular approach involved lowering systolic blood pressure below 130 mmHg and reducing LDL cholesterol using atorvastatin. Primary outcomes focused on global cognitive function changes measured by the Preclinical Alzheimer Cognitive Composite score. The factorial design allowed researchers to isolate individual and synergistic effects of each intervention. This represents one of the largest controlled trials specifically testing whether pharmacological cardiovascular management enhances exercise benefits for brain health. The findings address a critical gap in dementia prevention research, where most studies examine single interventions despite cardiovascular and metabolic factors often clustering together. For health-conscious adults, this research provides evidence-based guidance on whether investing in both structured exercise programs and aggressive cardiovascular management yields superior cognitive protection compared to either approach alone. The 24-month duration offers meaningful insight into sustained intervention effects, though longer follow-up would strengthen conclusions about dementia prevention potential.