astroengine writes "Great news for astronaut red wine aficionados: the alcoholic beverage can counteract some of the most troublesome physiological effects of microgravity. Unfortunately (or fortunately, depending on whether or not you have to pilot a spaceship), you have to drink a lot of wine to reap any benefit. These findings are fresh from the labs of French researchers (abstract) who found that by dosing unfortunate rats — hung by their tails to simulate microgravity — with resveratrol (a compound found in red wine), they could help stave off bone density loss and muscle atrophy. Does this mean resveratrol is an astronaut's best friend? Possibly, but judging by the quantities that are needed, it would most likely come in supplement form, rather than 750 ml bottles."