When I was thirteen years old, I was in a severe car accident and became a Traumatic Brain Injury patient.
Soon after the accident, I found that I had trouble remembering things that I did during the day or people I had met. When I returned to school, I started to have trouble learning and my grades suffered (I had always done well in school before that).
Recent studies show that music has a directly beneficial impact on brain function and possibly overall health. I can personally attest to this finding better than most.