The FDA has given the green light for a clinical trial of another drug with potential longevity benefits, the diabetes medication metformin. This trial is called TAME (Targeting Aging with Metformin), and it came about in a very different way. Metformin has been taken by millions of people for years. Over time, researchers noticed (and studies appeared to confirm) that patients on metformin appeared to have a lower incidence of cancer than the general population. One large 2014 analysis21 seemed to show that diabetics on metformin actually lived longer than nondiabetics, which is striking.
