Body Stretch on the Exercise Ball
To do this, first sit on the exercise ball, and roll ahead till you get an incline. Now, straighten your legs stretching your body back, with arms over the head. Now, drape yourself over the ball with your head relaxed and arms hanging towards the floor. After that, relax and breathe, and hold your breath for at least 15 seconds. This is one of the best exercises to improve flexibility.