Many people take the time to exercise the body, but are you taking the time to exercise your brain? Puzzles and brain teasers are more than just a past time, they can reduce the risk of serious health conditions including the early onset of dementia. Stephen Johnson, MD, Assistant Professor, Department of Neurosurgery, Rutgers Robert Wood Johnson Medical School and RWJBarnabas Health neurosurgeon, discusses how puzzles and games can help to keep your brain sharp.