The seven-year itch is a marital phenomenon, meaning that the marriage lasts for seven years, from the previous passion slowly becomes ordinary and plain, between the two people are prone to a sense of boredom, and the marriage enters the first dangerous period.
The term "seven Year Itch" originated from the 1955 American film The Seven Year Itch. There are two explanations for the phenomenon of the "seven-year itch", which are summarized here as the "cellular theory" and the "spiritual theory".
First, the cell theory
This explanation explains the phenomenon of the seven-year itch from the perspective of human cell replacement. "Cell theory" believes that human cells will complete an overall replacement every seven years on average, that is to say, seven years later you and seven years ago you, the cells in the body are greatly different, so the seventh year of love, you will be tired of each other, no longer love each other as seven years ago. But cell replacement is gradual, not sudden, so this claim is not highly credible.
Second, spiritual theory
This explanation is based on the analysis of human feelings as the main research method to analyze the causes of the seven-year itch. After seven years of love, the emotions of both sides have gradually become ordinary and plain from the initial passion, and from the previous eyes only romantic into a full of family chores.
In this process, the feelings of two people will gradually change from love to affection, the disappearance of the love filter will let you see a lot of shortcomings of the other side, the other side in the family atmosphere will slowly become no longer pay attention to the image, coupled with trivial matters and constant contradiction accumulation, the two sides will become more and more tired of each other, resulting in the "seven-year itch" marriage phenomenon. In addition, the temptation of the outside world is also the cause of the "seven year itch".