American psychologists argue that the duration of a relationship depends on the first intimacy. To find out, the staff at the University of California interviewed more than 800 people of different ages.
The researchers collected information on long-term and short-term relationships between volunteers, starting from the day they met. Psychologists noted that there was no fundamental difference in the development of relationships depending on gender and age.
It is noteworthy that short-term and long-term relationships begin in the same way, Gazeta.ru reports. The differences become noticeable after people have been together for several weeks or months.
Researchers have found that romantic interest grows at the same rate in both types of relationships. However, in the short-term, it begins to fade at a certain moment, while in the long-term it continues to grow.
It turned out that this discrepancy is observed after the first sexual intercourse. Psychologists concluded that the better the sex, the higher the likelihood that the relationship will be serious.
Earlier, American scientists made another surprising discovery about sex. It turned out that in marriage, women experience sexual desire more often than partners, and men suffer from this. The constant fear of possible problems with erection or that they will not get pleasure during lovemaking complicates the life of men.