In other words -- and I think you see where this is going -- no reason to live.  Of course it's meant to be funny, but in all seriousness, suicidal ideation is quite common with traumatic brain injuries.
즉 --이러면 어떻게 되죠?-- 살 맛 없는 거죠. 물론 우스개 소리지만, 사실 심각한 것이 ,자살망상은