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A concussion, also known as a mild traumatic brain injury (mTBI), is a head injury that temporarily affects brain functioning. [8] Symptoms may include headache, dizziness, difficulty with thinking and concentration, sleep disturbances, mood changes, a brief period of memory loss, brief loss of consciousness; problems with balance; nausea; blurred vision; and mood changes.
Physiological and psychological factors present before, during, and after the injury are all thought to be involved in the development of PCS. [13] [needs update] Some experts believe post-concussion symptoms are caused by structural damage to the brain or disruption of neurotransmitter systems, resulting from the impact that caused the concussion.
Therefore, it is often not clear whether the sleeping disorder is a result of pre-existing disorders. [9] Careful assessment of patients and determining the nature of their sleeping disorder is essential for finding the most effective treatment. [9] It is also important to ensure that measures of sleep are appropriate for use in the stroke ...
The 11 who received a concussion diagnosis during the season were given additional scans within 72 hours, two weeks and two months of the incident. The scans found microscopic white matter and inflammatory changes in the brains of individuals who had sustained a clinically diagnosed concussion during the period of the study." [65]
After his first concussion, he displayed what's known as the "fencing response," a natural physiological reaction to sustaining a traumatic brain injury, which happens in over 50% of TBI cases in ...
However, the first concussion need not be severe for the second impact to cause SIS. [6] Also, the second impact may be very minor, even a blow such as an impact to the chest that causes the head to jerk, thereby transmitting forces of acceleration to the brain. [7] Loss of consciousness during the second injury is not necessary for SIS to occur.
Traumatic brain injury (TBI, physical trauma to the brain) can cause a variety of complications, health effects that are not TBI themselves but that result from it. The risk of complications increases with the severity of the trauma; [1] however even mild traumatic brain injury can result in disabilities that interfere with social interactions, employment, and everyday living. [2]
Concussions may have consequences that are not immediately apparent. Concussions can affect sleep quality and may cause sleep patterns to become inconsistent. Some nights an individual may sleep for an extended period of time whereas in others sleep time can be short. With acute concussions, sleep occurs for longer durations when compared to ...