When singing in a group, participants seem to be able to both relax and connect to each other. 

Their mood is strongly influenced by the song that is being performed. Therefore, lyrics with certain inspirational messages tend to find faster the way to people's hearts.

While recent research has shown that music has a strong influence on patients with mental health issues, this is certainly not a scientific cure. However, singing can still be practiced in order to ensure a positive mindset and an increased level of happiness and accomplishment.