Gerald Weissmann, editor-in-chief of the scientific journal that published the study (the Federation of American Societies for Experimental Biology Journal), told CBS News that "resveratrol 'flips a switch' for cell metabolism that lets the cells 'breathe internally.'"
If you're thinking that now you can be a couch potato guilt-free, sipping on a nice glass of wine while watching Apollo 13 for the 100th time - all without suffering the usual ill effects on your health - there's a catch. (Oh, c'mon, there's always a catch.) The rats needed quite a bit of resveratrol to counter the effects of microgravity - way more than the amount contained in one or two glasses of wine. They might even have ended up in rat rehab before finding their way back to the lab.
Besides, according to the Inebriati (aka, the Knights Tippler, as imagined by the British sketch show That Mitchell and Webb Look), "slightly less than two drinks" is generally the accepted limit before the alcohol begins to impair judgment. We just can't have that in our astronauts, now, can we?