There are various sources of stress. The very definition of stress is: A mentally or emotionally disruptive or upsetting condition occurring in response to adverse external influences and capable of affecting physical health, usually characterized by increased heart rate, a rise in blood pressure, muscular tension, irritability, and depression. A stimulus or circumstance causing such a condition. In today's world of competition and success, the limits of our threshold are being pushed to succeed. Success is the driving force behind many people pushing their bodies to the limits. …