On the whole, its value is not as high as that of Huang Huali. In the book Prehistory from Huang Huali published by 1989, Huang Huali plays a very important role in improving one's sleep, especially for bed furniture. When people sleep, the irritating gas in Huang Huali will enter the human body, which can lower blood pressure and promote blood circulation. If we observe those who sell mahogany furniture ourselves, their mental outlook gives people a very refreshing feeling, which seems to be enough to show that it has a very good health care function.