MANASSAS, VA - NOV21: Rosa Valqui, 89, dances with activity ai

MANASSAS, VA - NOV21: Rosa Valqui, 89, dances with activity aide Tina Burhans-Robinson, during karaoke at Birmingham Green, an elder care residence in Manassas, VA, November 21, 2014. With the U.S. population aging and Alzheimer's more widespread, science is looking for ways to slow or delay the onset of dementia in aging Americans. Among the approaches is trying to determine whether art, music and dance or movement can also alleviate the problems attendant with dementia. The federal government is funding a study at Birmingham Green with George Mason University to see whether there is a scientific basis to believe that art is actually medically beneficial. (Photo by Evelyn Hockstein/For The Washington Post via Getty Images)