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It is complex to determine where health ends and disease begins. For example, when dealing with people who are at high risk for a certain health problem, prevention and treatment can become confused and overlap. The concept of "disease" usually includes both true diseases (processes that alter the functioning of parts of our body) and injuries. Any condition that causes pain, discomfort or involves a risk of death is likely to be considered a disease. Health and illness are often conceptualized within the same continuum. From this perspective, complete health corresponds to one of the extremes; in the other we find premature death. Depending on our physical and mental state, all of us would be at a certain point on the continuum at every moment of our lives.
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