Even the most ardent beer fans would be hesitant to claim that beer is good to rehydrate after exercise. However, research has suggested that beer can rehydrate athletes better than water for three key reasons: one, that beer’s vitamins and minerals offer health benefits that water doesn’t have; two, that the carbonation helps quench thirst; and, three, that the carbs help replenish energy stores. Moderation is key, however.
This is only six of the myths, there are four more you can enjoy reading about at http://www.thedrinksbusiness.com/2014/09/top-10-drinks-myths/?source=US&date=10-4-14
I hope that you have had as much fun looking at these legendary myths as I have. ;o)