According to a recent small study, it actually can. The study investigated how dancing with music impacts people with mild-to-moderate Parkinson’s during 3 years time and found that dance training for 1 ┬╝ hours per week can slow down the disease progression and even improve daily living and daily function.

I guess your first reaction would be, socializing, of course! And you are right, but time alone is also very important as it contributes to your personal growth, just in a different way.