My mother always talks to herself and doesn't know what to say. Why?

Maybe your mother was thinking about someone or something in her heart, or she was depressed for too long, which led to her psychological disorder. Go home more and spend more time with your mother. Moreover, once people are old, it is easy to recall the past, and sometimes it is normal to talk to themselves because there is no one to accompany them. Didn't the national law just add a new item: cold violence in domestic violence, that is, the wife said for a long time and the husband said "Oh"?