Q & A: Singing and Fitness

Is singing exercise? Could I lose weight by vocalizing?

Zrodlo (oryginalny wpis) na http://www.nytimes.com/2008/04/01/science/01qna.html?ex=1364788800&en=ca98f5ba62421b17&ei=5088&partner=rssnyt&emc=rss,By C. CLAIBORNE RAY