This is so amazing, I think it deserves it’s own topic! Thanks for posting it!!!
Didn’t know where to post this. But there is a section about Metformin - talk by Dr. Nir Barzilai starting at 1:33:09.
Professor James Kirkland’s, on senolytics, starts at 42:20.
The first speaker, Professor Thomas Rando 16:30 talks about Stem Cells and Ageing.