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Unformatted text preview: muscles increases with a rapid release of sugars into the blood stream. This is what can cause the human reaction to be extraordinary in dealing with the threat. People with high level of stress are at an increase risk for cardiovascular diseases, immune system, as well as digestive system. Many researches were conducted on this subject and found a big impact on heart rate, blood pressure, heart attack, and stroke. The release of cortisol as a result of stress over time, without relief, will reduce the immune system to respond properly. Stress also causes the blood not to flow into the digestive system causing nausea and cramping....
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- Spring '10