1 - Lie on your side on a mat with your hips and knees bent at approximately 90 degrees, stacked on top of each other.
2 - Extend both arms straight out in front of you at shoulder height, palms together.
3 - Take a deep breath in, and as you exhale, slowly rotate your top arm upward and over to the opposite side, opening your chest like a book, while keeping your knees stacked and your lower body stable.
4 - Allow your top shoulder and arm to reach toward the floor on the opposite side, following with your gaze in the same direction.
5 - Hold the stretched position for 2-3 seconds, feeling the rotation through your thoracic spine and the opening across your chest.
6 - Inhale and slowly return your arm back to the starting position, bringing your palm back to meet the other hand.
7 - Complete all repetitions on one side before switching to the opposite side and repeating the movement.