Dance your way to a sharper mind: study tests best weekly dose for brain health

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Cognitive Change Index score ≥16 * Montreal Cognitive Assessment (MoCA) score ≥21 * Cognitively normal * Low-active for past 6 months (\<30 min, 3 days/week of exercise, including walking for exercise) * MRI compatible * Willing and able to complete exercise testing. * Has reliable transportation or is able to use transportation provided by the study. * English speaking (needed for group class participation) Exclusion Criteria: * Unable or unwilling to attend intervention classes 1-3x/week * Current diagnosis of a major neurological disorder (Alzheimer's disease, Lewy body dementia, Frontotemporal dementia, Parkinson's disease, amyotrophic lateral sclerosis, etc.) * Unwilling or unable to provide consent for study participation. * Currently symptomatic or cortical stroke or stroke deemed exclusionary by the study physician. Reported or observed evidence of strokes on MRI will be reviewed on a case-by-case basis by the study physician to assess factors such as location, size, time since stroke, and residual symptoms. * Taking medication during the intervention times that could negatively influence safety * Current cancer treatment or other major medical problems that might independently affect cognition or movement or interfere with ability to attend intervention or study visits. * Chronic vertigo. * Enrolled in another interventional research study ≤3 months prior to beginning this study. * Hip fracture, hip or knee replacement, or spinal surgery in past 6 months. * Health contraindications for completing a graded exercise test and movement intervention, including uncontrolled hypertension (BP\>200/110 mmHg), hypertriglyceridemia (TG\>400 mg/dl), uncontrolled diabetes (HbA1c \> 7.5), clinical evidence of anemia. * Self-reports regularly drinking \> 14 alcoholic beverages a week or current illicit drug use. * Unable or unwilling to understand study procedures and comply with them for the duration of the study.