The brain is well-protected by the skull, membranes, and cerebrospinal fluid, but traumatic brain injuries (TBI) can still occur due to significant impacts. These injuries range from mild concussions, which typically heal with rest, to severe TBIs that may cause unconsciousness, coma, or even death. TBIs can be classified as closed, where the skull remains intact, or open, where an object penetrates the brain. Repeated head trauma, common in contact sports, may lead to Chronic Traumatic Encephalopathy (CTE), a progressive condition affecting mood, memory, and decision-making. Additionally, skull fractures can result from severe impacts, potentially causing brain damage and bleeding.