I just now read an article and saw the video that is titled: “Why you should sing more even if it’s off key”.
Why you should sing more — even if it’s off key
It calms, relaxes, a mood booster (hard to stay sad even when singing a sad song), lose weight, increase lung capacity, help in recovery from surgery, help in recovery from strokes, helps the brain, helps memory, helps to 
overcome depression, and other benefits.
Go there and watch and read and of course start and keep singing.
