The Seven-Year Itch
Pop Psychology
The phrase (popularized by the 1955 Marilyn Monroe film) suggests marital satisfaction predictably craters at year seven.
**Reality: A real pattern, a made-up number.** The phrase (popularized by the 1955 Marilyn Monroe film) suggests marital satisfaction predictably craters at year seven. Research does show that divorce risk peaks in the early-to-middle years of marriage and that satisfaction commonly declines from newlywed highs, but there's nothing magic about year seven; studies have found peaks anywhere from year four to year eight, varying by population and era. The useful kernel: the transition out of the honeymoon period and into the logistics-heavy middle years (often coinciding with young children) is a genuinely vulnerable stretch that benefits from deliberate investment.
Evidence
Pop Psychology
The seven-year itch, the idea that marriages hit a danger point around year seven, earns Pop Psychology. The number partly reflects a coincidence: the median length of marriages that end in divorce has long hovered near seven years (about 7.2 in 1990). But the underlying pattern is messier. Satisfaction tends to decline gradually, steepest in the early years, and the peak in divorce risk is highly sensitive to how it is measured, landing anywhere from about five to twelve years across studies (Kulu, 2014; Kurdek, 1998). There is no special rupture at year seven.