How Often should Couples have Sex to Maintain Intimacy

In your opinion, how often do you think one (especially couples) should have sex?
Studies have revealed to us that it takes just having sex once a week for any couple to enjoy optimal happiness.

This study has been for over four decades, with over 30, 000 Americans collected and surveyed.
According to the lead researcher, who is a social psychologist and postdoctoral fellow at the University of Toronto-Mississauga and be name Amy Muise “Although more frequent sex is associated with greater happiness, this link was no longer significant at a frequency of more than once a week,”


She also said “Our findings suggest that it’s important to maintain an intimate connection with your partner, but you don’t need to have sex everyday as long as you’re maintaining that connection.”

The study was also limited to people in romantic relationships, not single people.

Question is does more sex makes for intimacy?