Even if you don't proactively do a stretching program, there's a good chance that you instinctively do some sort of stretch every morning.
원문출처 : http://www.cnn.com/2017/05/09/health/stretching-fitness-santas/index.html
원문출처 : http://www.cnn.com/2017/05/09/health/stretching-fitness-santas/index.html