People say that health is the most important thing in life, but it seems to have the least significance in their actual lives. We see many people in modern society undermining their health through lack of exercise and having unbalanced diets. Alcohol , smoking, and junk food also aggravate this phenomenon. Another new factor adding to many people’s health problem is stress. Experts say we can’t avoid stress as long as?we live in their ever changing society. So what matters is not how to avoid it, but how to reduce it and cope with it effectively.