Concussions are classified into several types.
Concussion is the mildest form of brain injury, characterized by transient brain dysfunction without visible neuropathological changes, although microscopic examination can reveal disordered neural structures. Generally, there are two types of concussions. The mild form manifests immediately after the injury with transient disturbances in consciousness and mental clarity, often lasting a few seconds to minutes, usually not exceeding half an hour. Upon waking, the individual cannot recall the incident, a condition known as retrograde amnesia. The second type, the severe form, involves more significant disturbances in consciousness that last longer, accompanied by symptoms such as pallor, cool and moist limbs, sweating, decreased blood pressure, slowed heart rate, slowed breathing, and the loss of various physiological reflexes. However, as consciousness is regained, these symptoms gradually normalize, followed by headaches, nausea, vomiting, and other symptoms. With time and treatment, improvement typically occurs.
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