Stress is often called the(the -->a) 21st century illness, but it has always been with us perhaps with different names. Those days we often consider stress is necessary evil of modern life. However, stress is not negetive and without it we will certainly not enjoy some of the highpoints in life just as the anticipation before a date or the tension leading up to an important match. All these situations produce stress, but if you can control it and not the other way round you will feel stimulated, not worn out. Like these situations, which are generally positive but easier to deal with, sitting in a train that is late, being struck in a traffic jam, working to a tight deadline is much harder to manage and control. Stress is now recognized as a nedical problem and as a significant factor in causing coronary heart disease, high blooded pressure and high cholesterol count. The fact is that patients are often willing to admit to stress problems because they feel they are a form of society failure and it is important that symptoms should be identified in order to avoid unnecessary sufferings. So why should we be looking out for as danger singals? Some common signs of stress are increased tiredness, irritability and the inability to solve certain situations. Mn tìm lỗi sai giúp mình + giải thích luôn ạ