Sex is the secret to a happier marriage. This is according to a new study conducted in America. Sexual intercourse has a more positive effect on the emotional attachment between couples and strengthens it, according to the results of research by Dr. Andrea Meltzer, published in the scientific journal “Psychological Science.” Many studies to date highlight the role of couple activities in supporting the relationship. However, they only work in the short term, and a longer and happier marriage relies on good sex, the scientists point out. Less than 24% of married people have sex 4 or more days a week. For the rest, caresses under the covers could also be classified as a mirage, according to information from the International Society of Sexual Medicine. Intercourse fuels us for a longer period of sexual satisfaction, which also increases satisfaction with the relationship, according to Dr. Meltzer’s team, who studied 214 married couples who are at different stages of their marriage. From the answers in the detailed questionnaire about their intimate relationships, it is clear that her love activities excite us and make us love the other for at least two days to come. This does not change depending on age, gender, personality traits, length of relationship and other factors. NEWS_MORE_BOX Couples who regularly have sex express much greater satisfaction with their partner and have a more stable relationship, according to the results of respondents. Many other studies show that lack of sex can lead to many problems in a relationship. Often men or women feel rejected and unappreciated because of the “quietness” in bed. Many psychological conditions can also be among the culprits of a lack of desire for sex. In depression, for example, we often experience an inability to enjoy activities that normally bring us pleasure, including sex. Medications and alcohol can also impair libido.