Many people confuse the difference between stress and anxiety. Stress comes from our interpretation of our environment which we call the pressures of life. Anxiety on the other hand is caused by high levels of uncertainty in life. Anxiety is more feelings of unease and apprehension. Stress tends release adrenaline into our bodies. Both of these situations cause muscles to become stiff and tense. Your body needs to unwind this tension for better balance. Massage chairs are very helpful in reducing symptoms of stress and anxiety.