Emily Nagoski, author of The Way a Woman Wants, describes being attracted to each other as part of a motivation and reward system, not a vital necessity - no one has yet died naturally from a lack of sex. The hormone levels of desire, pleasure, and attachment can be regulated through a quality sex life that brings pleasure to partners.But love is not only sex, it is also communication between partners. Relationships become a comfort zone for a person. When the level of trust between partners is high enough, a loving relationship can last much longer than three years.This area is responsible for reward and pleasure. True, in more “younger” couples who were together for less than 10 years, the area of \u200b\u200bthe brain responsible for attachment and sexual desire responded more intensely to the photograph. However, thanks to this experiment, scientists were able to confirm that love can live for many years.In 2011, researchers in New York City compared two groups of couples: some had only recently started dating, while others had been in a relationship for more than 10 years. The second group was asked to rate how much they were in love with their partners on a scale of 1 to 7. During the experiment, participants were shown photos of their partners and strangers and recorded brain activity. Both groups had increased signals in the ventral cortex during the study.