One of the things I love to do is drum. When drumming your mind can create endless amounts of beats that you yourself love to listen too. What I have recently found out is that drumming has a positive impact on the body.
According to http://project-resiliency.org/resiliency/the-benefits-of-druming/ it states, "Research indicates that drumming accelerates physical healing, boosts the immune system. In addition specific studies conducted by professionals in the fields of music therapy and mental health show us that drumming: Reduces tension, anxiety and stress. Helps control chronic pain."
Usually older people are the ones to suffer from these types of issues.
As said before drumming increases the awareness of your mind and promotes alpha waves. This helps by rebuilding mental health.
The best scientific reason of why drumming is fun is because your brain releases endorphin that causes happiness. This can help with people that have depression.