Because once we make a final, no-turning-back decision, the psychological immune system kicks in.

FORBES: Why Keeping Your Options Open Is Really, Really Bad Idea

He said the system exploited psychological techniques to make a person feel that Milo was real.

BBC: 'Virtual human' Milo comes out to play at TED in Oxford

Freeman identified five main barriers his patients faced in receiving care: financial, communication, medical system, psychological and personal.

CNN: Helping patients navigate the health care system