Today we have a couple of links to articles on the effects of dance and music:

Effects of Dance/Movement Training vs. Aerobic Exercise Training

Abstract only, but the results appear to be in favor of Dance Movement Therapy (DMT) as positive. Aerobic Exercise Therapy (AET) improved cardiovascular health, though, so both aerobic and dance movement therapies should be used for health.

Executive and non-executive composite scores showed a significant increase post-training (F(1,37)=4.35, p=.04; F(1,37)=7.01, p=.01). Cardiovascular fitness improvements were specific to the AET group (F(2,38)=16.40, p<.001) while mobility improvements were not group-dependent (10m walk: F(1,38)=11.67, p=.002; Timed up and go: F(1,38)=22.07, p<.001).
Results suggest that DMT may have a positive impact on cognition and physical functioning in older adults however further research is needed. This study could serve as a model for designing future RCTs with dance-related interventions.

Next, a short article on the effects of musical training on brain plasticity.

The-Effects-of-Musical-Training-on-Brain-Plasticity-and-Cognitive-Processes

The link between musical training and its effects on brain plasticity have been studied since the early 20thcentury neuroanatomy research of Ramon y Cajal. In recent decades, studies have observed the contributions of musical training in enhancing auditory, motor, and language processing areas of the brain. The ability of musical training to impact behavior and critical thinking skills may also open the door for new methods of combating age-and illness-related cognitive decline(emphasis added)

In conclusion, whether or not one has a neurodegenerative disease or not, it is good advice to do aerobic exercise for the heart, dance for the mobility, and learn or continue to play a musical instrument to keep the brain plastic and elastic and fantastic.

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