I've always said our health insurance should pay us for holding old-time jamborees, and now I have solid scientific proof: The American Heart Association reports how Romualdo Belardinelli at the cardiac rehabilitation and prevention at Lancisi Heart Institute is finding better oxygen uptake, better aerobic thresholds, and far more than that, they've found a workout people actually enjoy ... and unlike the cloistered pod-eared gym gear cocooner, seems a good waltz-out is good social exercise too:

The dance proved to be just as effective as bicycle and treadmill training for improving exercise capacity in a study of 110 heart failure patients. Dancers also reported slightly more improvement in sleep, mood, and the ability to do hobbies, do housework and have sex than the others.
[ via Study: Waltzing helps mend hearts ]

There you have it, good medicine for both kinds of hearts. But it is sad and tragic, isn't it, that you can claim upwards of a C-note per hour to be danced-for by a cold hard physio trainer, yet the demonstrably superior mind-body medicine of an hour's sway with your sweetie is 100% out of pocket expense, and if the jam' band don't fuel you all for free, there wouldn't be one. Not to worry tho', 'cause you know your sweetie's worth it, and the band is in it for deep therapy too, which makes the whole scene not just kinetic poetry, but delightfully symbiotic as well.