Throughout history and cultures, singing has been used as a way to express emotion and help people heal, and the same principles can be applied to our daily lives. Singing can help you relax, boost your mood, and open up your breathing passages. Other studies have linked singing to lowered blood pressure, while other research has shown that it can help people manage chronic pain.
So don't be afraid to sing in the shower, or wail along with your favorite song on the radio. At the very least, it will probably put you in a happier state of mind.