According to the American Institute of Health, up to 90% of all health problems are related to stress. In other words, our thoughts and emotions have a dynamic effect on our health and vitality. Research has shown that stress and emotions of all kinds are reflected in our heart rhythm pattern. This pattern, in turn, tells us much about how our body is functioning. Our mental and emotional health is equally important and deeply interconnected with our physical well-being. When your body is out of sync, it works, just not as well as it could. This means that your autonomic nervous system, hormonal system and immune system are not working in a synchronized manner, which manifests in a variety of symptoms.