They are hoping to give them time to recover......It can happen even in some of the worst injuries.
...but in cases like that family here in California who are keeping their brain dead daughter on life support....I'm afraid that is a case of denial. She is exactly what she sounds like. Her brain is DEAD. The only thing keeping her body moving is the machine. She is already dead, the family just can't understand that.
Some people can recover. My friend was on life support when she was 6 years old because of being run over. She was on life support for more than 3 months. Now she's 28. If her parents had given up, she wouldn't be alive today.
The case in the news right now is about a brain dead woman who is being kept on life support because she is pregnant. The husband wants to let her die; the state won't let that happen because of the fetus which is not viable at this time, meaning it could not survive outside of the mother's womb. Sadly, there is a chance this baby may have its own set of serious medical problems. A terrible set of circumstances.