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The human body is a highly complex and intricate machine that has been engineered to function optimally under normal circumstances. However, when faced with extreme temperatures, humidity levels, and other environmental stressors, it can begin to malfunction and experience adverse effects. These malfunctions can occur in various systems within the body, including the circulatory system, nervous system, and digestive system. For instance, exposure to high temperatures can cause the blood vessels to dilate, leading to a rapid increase in heart rate and potentially causing dizziness or fainting spells.