Well, another issue to ponder is type & strength of evidence being reported. I try to only point out human data published in peer-reviewed journals rather than telling you about some possible answer to achieve world peace, end hunger & cure cancer, all based upon a one week study of a few mutated drosophilia flies.
And if you want 24 karat proof, look for reduction in all-cause mortality. After all, we're all going to die from something, right? It's kind of like playing Whac-a-Mole (apologies to PETA) whereby decreasing one disease-specific mortality (whacking a mole) allows an increase in some other disease process (another mole pops up). What you really want is a decrease in all-cause mortality (where no moles are left standing). Stay tuned for tomorrow's post . . .