In the final part of her series, Sienna Saint-Cyr looks at yoga for mood swings. Learn how to calm the shift in your mood through this set of yoga poses.    As I ventured into the final part of this yoga series looking at yoga for mood swings, I began to see something pop up again and again: our moods are vital to us living a happy life. Psych Central, the Journal of Depression and Anxiety, Psychologist World and many more sources agree that happy people live healthier lives and make b