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  2. Head injury - Wikipedia

    en.wikipedia.org/wiki/Head_injury

    While impact on the brain at the same site of injury to the skull is the coup effect. If the impact causes the head to move, the injury may be worsened, because the brain may ricochet inside the skull causing additional impacts, or the brain may stay relatively still (due to inertia) but be hit by the moving skull (both are contrecoup injuries).

  3. Chronic paroxysmal hemicrania - Wikipedia

    en.wikipedia.org/wiki/Chronic_paroxysmal_hemicrania

    Attacks hit the patient many times a day, from 5 times a day up to 40 times a day with an average of 11 a day. Mild background pain can persist between attacks. They come in bouts that last from 7 days to 1 year separated by remission periods that can last more than 3 months in episodic patients, or less than 3 months in chronic patients.

  4. Ophthalmodynia periodica - Wikipedia

    en.wikipedia.org/wiki/Ophthalmodynia_periodica

    The following diagnostic criteria are given for ophthalmodynia periodica: [medical citation needed]. Head pain occurring as a single stab or a series of stabs; Can be felt in the areas surrounding the eyes and temples but is "typically felt on the top, front, or sides of the head"

  5. Traumatic brain injury - Wikipedia

    en.wikipedia.org/wiki/Traumatic_brain_injury

    [12] [13] All traumatic brain injuries are head injuries, but the latter term may also refer to injury to other parts of the head; [14] [15] [16] however, the terms head injury and brain injury are often used interchangeably. [17] Similarly, brain injuries fall under the classification of central nervous system injuries [18] and neurotrauma. [19]

  6. Neurologists reveal 15 subtle migraine symptoms — that aren't ...

    www.aol.com/neurologists-reveal-15-subtle...

    A migraine headache can throw your whole day off track. But if you can learn to pick up on your subtle migraine warning signs, you might able to avoid the pain entirely, experts say. "This is a ...

  7. Concussion - Wikipedia

    en.wikipedia.org/wiki/Concussion

    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.