Stress is defined as the body's non-specific response to any demand placed upon it. During a stress reaction, the body experiences increased heart rate, blood pressure, breathing rate, muscle tension and perspiration as well as heightened mental alertness and blood flow to the brain and muscles. Stress can come from a variety of sources including environmental factors, social pressures, major life events, and daily hassles. Reducing stress involves maintaining a balance through activities like exercise, relaxation, time management and healthy habits.