Inclusion Criteria:  • Informed consent  Age 21-55 years BMI within ≥ 30 and < 40 kg/m2 range Pre-menopausal Fasting plasma glucose (FPG) < 100 mg/dL Resting blood pressure: systolic < 160 mmHg or diastolic < 100 mmHg Employed in sedentary occupation (i.e., participants reporting sitting on average 6 h/d on a weekday and with objectively assessed sitting time ≥ 8 h/day) Physically inactive (i.e., engaging in < 150 min of moderate or < 75 min of vigorous or any combination of the two intensities per week) Participants must have had no prior diagnosis of cognitive or physical disability (e.g., ADHD, severe asthma, epilepsy, chronic kidney disease, or dependence upon a wheelchair/walking aid) Free of medication that could affect cognitive function or metabolism Normal or corrected-to-normal vision based on the minimal 20/20 standard in order to complete the cognitive task (below 20/20 vision) Must be able to engage in vigorous exercise Fluency in English  Exclusion Criteria:  • Impaired glucose tolerance defined as fasting plasma glucose (FPG) < 100 mg/dL  Oral glucose tolerance test (OGTT) blood glucose values ≥ 200 mg/dL Participants with any psychiatric, neurological or metabolic disorder Participants who have or are currently taking the medication that could affect cognitive function, metabolism or weight status Participants with substance abuse Participants with a standardized score on the test of general cognitive abilities below 85 Participants with anemia Pregnant women or those with a possible pregnancy History of injury to the spinal cord