Sorry to hear your friend is struggling so. Brain injury really, really sucks. That is my enlightened professional opinion as I run a day program group for people with BI. Sometimes families assist, sometimes they flee! - and some were helping and just got burned out & hopeless after realizing their loved one was not every going back to their "used to be."

Are you sure your friend is really communicating her situation to her sibs? Do her sibs understand that she would not get better if "she only tried harder?"

How much would I help my sib? A lot, but I don't know that he'd ever ask me...