Singing increases your sense of well-being because it is an activity which produces endorphins. Endorphins are a natural chemical within the body which fights against pain and makes people happy.
Singing on a regular basis strengthens the muscles in the 'inner' larynx used for speech and singing.
Paula Odell encourages correct vocal technique which keeps the vocal cords healthy.
The 'correct' breathing method used for singing reduces anxiety and stress.
Small scale choreography used during sessions is good for improving coordination problems.