His living habits are very similar to those of people in poor areas before. Because of the lack of water, he chose to reduce the frequency of water use. But looking at his residential area, it is obvious that he is rich, and he was an official at that time, so it is impossible to lack money. Through this comparison, we know that he is really sloppy, not fake sloppy, and historical records are also really sloppy.
He also made a joke about it. It is said that there was a lot of dirt on my face because I didn't wash my face for a long time. Then, his family saw that his Tang Yin was black and thought he was ill, so they called the doctor to feel his pulse. I didn't expect the doctor to see that he was not ill, but he often didn't wash his face, so his whole face was black and shiny. This is just a joke. As for the truth, you can decide for yourself, but it also tells us that Wang Anshi really doesn't wash his face and take a bath once a year.
Wang Anshi, who is famous for his untidiness, does exist in history. As for washing your face once a month and taking a bath once a year, it remains to be considered. After all, it is one thing whether his wife and children can accept it, let alone whether they can accept it, because it is really dirty.