According to a recent survey in Great Britain radio gives folks a better disposition and improves their energy levels. The smartphone survey which polled over 1000 Britons found that radio improved peoples mood and pumped up their energy levels.... more than television or internet viewing. I wouldn't be surprised if the results which I happened upon while reading a story from the London newspaper" The Telegraph"were applicable in the U.S.  The article went on to say that listeners use radio as a system of support and to improve their overall life outlook. Eat your heart out facebook!  http://www.telegraph.co.uk/technology/8603551/Radio-makes-Britons-happier-than-TV-and-web.html