My Pop Choir
CBC Radio talks about the science behind the benefits of choir singing.
Experts and choir singers have both been extolling the physical, emotional, and psychological benefits of singing in a choir; singing together. Here's a discussion from CBC Radio Canada on the actual science.
http://www.cbc.ca/radio/blogs/the-science-behind-why-choir-singing-is-good-for-you-1.4594292