There are many benefits of deep breathing exercises for children. Not only will they help children but the adults who are leading the deep breathing exercises will also benefit. 10 Benefits of Deep Breathing Exercises for Children Decreases stress. Reduces anxiety. Helps you to remain calm. Strengthens sustained attention. Sharpens the ability to focus and learn. Slows the heart rate. Lowers blood pressure. Helps to control your emotions. Promotes appropriate social behaviors. Encourages happiness.