Stress on the job Work can be a source of great stress for many people, not just postal workers. No matter how healthy you are to begin with, a stressful job can burn you out. Stress is a physical or mental response to the pressures of an event or factors of living in general.
Stress can be positive or negative.
Biologically, when stress occurs, your body releases hormones which accelerate your breathing and heart rate, increase your blood sugar levels and blood pressure, and improve blood clotting. Your body gets into a survival mode, readying itself for a physical emergency. This can be a good thing. You have energy and mental agility to get the job done. You are alert and perform well.