To live a quality life you need to de-stress. Stress is a part of day-to-day living. That's a fact. In order to handle it, you need to relax. Otherwise, your immune system will be the first to give way. People who are always stressed are prone to ailments like headaches, ulcers, fatigue, high blood pressure, mental illness and even heart attacks. Constant stress can also make you angry all the time. This often destroys relationships with the people you love.