So it seems from the summary that eventually the direct cause of death is the person not eating anything. However there are more than one way why a person might

So it seems from the summary that eventually the direct cause of death is the person not eating anything. However there are more than one way why a person might have reached that state. Anorexia is another such example. The title is a bit sensationalist IMO. It's just a case of severe depression/psychological disorder where the person doesn't even eat, which has been known since eternity and documented in countless legends/fables. It isn't some sort of magical/previously unknown process where a person suddenly dies if they give up, etc.