gone through very stressful experiences were more susceptible to the infection despite a very small dosage of the flu virus. The other women who were not tired did not get infected even though they had considerably high dosages of flu virus in them . Lastly, evidence that ulcers are associated with high stress levels have been conclusively proven by Woolfolk. Ulcers occur when digestive juices burn a hole in the stomach lining. A person under stress or anxiety would stimulate the rapid secretion of digestive juices into the stomach. Thus, when a person is subjected to constant tension and frustration, he / she has a high likelihood that an ulcer would occur. Evidence for this was provided by the study performed by Dr. Steward Wolf. He was able to monitor activities of a patient stomach, and where the patient responded to an emotional situation, he observed the excessive secretion of stomach acids. Woolfolk and Richardson further the studies by showing increased levels of stomach acids during high exposure to stress. 2.1 Psychological EffectsMost organizations have recognize that stress can have an adverse effect on the efficiency of their employees. In 1978, the International Association of Chiefs of Police (IACP) cited their study report that there are essentially three psychological reactions to consistently high stress levels: repression of emotion, displacement of anger, and isolation. Repression of emotions occur often in human service professionals such as policemen or accountants. Their roles demand that they suppress their emotions when interacting with clients. Thus, when the stress levels begin to rise as they deal with more and more clients, they would put up an even greater resistance to their own emotions . Over time, the professional may not be able to relax that emotional resistance. All their emotions would be masked and retained within themselves, resulting ultimately in mental and emotional disorders. In stressful tim...