Metformin, the big new "anti-aging" drug, explained

The video is well done and nicely presented.
I am personally always skeptical about things that seem overstated. Especially when it is the ultimate easy way out - a pill.
Plenty of existing studies clearly show a correlation between exercise, healthy plant based diet, occasionally being uncomfortably cold or hot, etc. and a longer healthier lifespan. Seems like we can all benefit from such a lifestyle improvement rather than taking a pill that we hope works.