This will be a two by two factorial, randomized, controlled trial to slow cognitive decline in adults undergoing hemodialysis (HD). The investigators primary objective is to determine if receiving cognitive training (tablet-based brain games), exercise training (stationary foot pedal), or combined cognitive and exercise training preserves executive function relative to those with standard of care . The secondary objectives are to compare the rates of end stage renal disease (ESRD)-specific clinical outcomes and patient centered outcomes among those receiving CT, or ET, or CT+ET relative to those in SC. The investigators will formally test whether receiving CT or ET will preserve executive function and receiving combined CT+ET will preserve executive function better than CT or ET alone.
