Inclusion Criteria:  Speak English as the primary language and be able to read and write. Good general health with no concomitant diseases Low berry consumption (≤1 serving/week) Cognitively normal (Mini-Mental State Exam Score ≥24) BMI range=18.5-35 kg/m2.  Exclusion Criteria:  Presence of any central neurological diseases or prior major head trauma with loss of consciousness Presence of an active unstable and life-threatening systemic illness Presence of major psychiatric disorders within the past 3 years including depression, anxiety, and alcohol or drug abuse Presence of diabetes mellitus; metabolic syndrome or uncontrolled hypertension Use of psychoactive and investigational medications MRI contraindications (pacemaker, aneurysm clips, artificial heart valves, metal fragments, foreign objects or claustrophobia) Blueberry or salicylate allergy Pregnancy