Jason Plemel, PhD, University of Alberta, Edmonton, AB, Canada, talks about an exciting avenue of research conducted out of the Cambridge group – metformin, as a means for remyelination. This drug appears to act on oligodendrocytes to promote a more rejuvenated biology – inducing them to act like younger cells rather than the actual aged scenario. Having been tested in animal models, remyelination has been promoted in both young and old animals – inferring promising results for future clinical trials. This interview took place at the ACTRIMS Forum 2022 in West Palm Beach, Florida.