There is evidence that mitochondria need certain nutritional elements such as Niacin and some B vitamins for proper reproduction. With this in mind, can we look to see if these neurons need a different nutritional source (type) to keep them healthy and long-lasting? Ref: http://www.cell.com/trends/endocrinology-metabolism/pdf/S1043-2760(12)00106-3.pdf
https://hms.harvard.edu/news/genetics/new-reversible-cause-aging-12-19-13