There are several interesting points in this study: http://longevityrepo...a-drug-cocktail
1) Metformin+rampaycin (both at "optimal" doses) did not increase life span beyond what each compound could individually achieve.
2) "Suboptimal" dosing of these drugs seems to help circumvent the problem which often occurs of decreased life span when two or more "longevity compounds" are combined.
3) Combining longevity compounds with "mechanic overlap" could decrease life span, while combining those without it might greatly increase life span.
Edited by Decimus, 13 July 2017 - 06:18 AM.