More on Metformin and Cancer (and Alzheimer's)

Metformin: what a weird compound it is. Very small, very polar, the sort of thing you'd probably cross off your list of screening hits. But it's been taken by untold millions of diabetics (and made untold billions of dollars in the process), because it really does reduce glucose levels. It does so though mechanisms that are still the subject of vigorous debate and which (I might add) were...