https://www.sciencedaily.com/releases/2017/12/171211123113.htm
https://www.mayoclinicproceedings.org/article/S0025-6196(17)30898-4/fulltext
https://www.mayoclinicproceedings.org/article/S0025-6196(17)30898-4/fulltext
https://medium.com/parkinsons-uk/the-science-of-exercise-part-1-58c1054b50c6
https://www2.cortland.edu/news/detail.dot?id=1573dfc7-1af7-41f8-9bb0-c9d1d5525124