Clues to the underlying causes of boredom have come from patients who suffer traumatic brain injuries (TBI). People with TBI often begin to indulge in riskier activities after their accidents.

从一些有脑外伤(TBI)的病人身上，可以得到有关烦闷成因的一些线索：脑外伤的人，最初的表现就是容易沉湎于危险程度较高的活动。

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Objective to research the prevalence rate, manifestation and their related factors of mental disorder due to traumatic brain injuries.

目的探讨颅脑创伤后各种精神障碍表现形式及影响因素。

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Traumatic brain injuries, severe seizures can be immediate, the light can be delayed a few months and harvest epilepsy, mainly due to bleeding orifices closed due to interference of God.

颅脑受伤，重者可立即产生抽搐，轻者可以迟发，数月乃至数年成癫痫，主要是由于瘀血闭窍扰神所致。

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And most of all, for our veterans it will mean better access to the doctors and nurses and the medical care that they need: specialized care for our wounded warriors with post-traumatic stress and traumatic brain injuries, and the staffing to welcome back to the VA those half-million "Priority 8" vets.

WHITEHOUSE: President Signs Bill to Expand Veteran Benefits

It means that we're going to provide services for Post-Traumatic Stress Disorder, that we're going to provide services for Traumatic Brain Injury that are the signature injuries of these recent wars.

WHITEHOUSE: Online Town Hall

In other high-contact sports, several former boxers and football players have developed traumatic brain injuries believed to be caused by repeated blows to the head.

CNN: Fans attracted to 'forbidden fruit' of violence