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Electric shock is a physiological reaction or injury that occurs when an electric current passes through the human body. The body, being a conductor of electricity, allows current to flow when it comes in contact with an electrical source. The severity of the shock depends on factors such as the magnitude of current, the path it takes through the body, the duration of contact, the type of current whether alternating or direct, and the condition of the skin, particularly whether it is wet or dry. The main reason electric shock is dangerous is that the human body functions through electrical impulses, particularly in the nervous system and the heart. An external electric current can disturb these impulses, potentially leading to severe injury, burns, paralysis, or even death. Even very small currents can be fatal if they pass through vital organs, especially the heart. When the skin comes in contact with an electric source, resistance determines how much current flows. Dry skin offers greater resistance, whereas moist or broken skin reduces resistance and increases the flow of current. Electric shock often leads to involuntary muscle contractions, which can make it difficult to release the source of electricity, thus prolonging contact and increasing the damage. Victims of electric shock may suffer from cardiac arrest, respiratory failure, neurological disorders, and local injuries such as burns. The effects can range from mild tingling and discomfort to life-threatening conditions. In the field of building services and maintenance, understanding electric shock is crucial because workers frequently deal with electrical installations, wiring, machines, and appliances, where the risks are high if safety precautions are not followed. Among the different types of injuries caused by electric shock, burns are the most common. Electrical burns occur because the human body converts electrical energy __________ _________ ___ _________ _____ ________ _________ ___ ____.
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