While people in the early years of marriage have sex more frequently, and their sexual activity tapers off over time, a slight rebound occurs for those whose marriages endure longer than half a century, according to new research.
The study also found that people who remain in their first marriages have sex more frequently than those who remarry. But frequency aside, marriage order made no difference when it came to actual physical pleasure and emotional satisfaction, said researchers from Louisiana State University, Florida State University and Baylor University.
Their study — “Marital Characteristics and the Sexual Relationships of U.S. Older Adults: An Analysis of National Social Life, Health and Aging Project Data” — is published in the journal Archives of Sexual Behavior, the official publication of the International Academy of Sex Research.
Researchers analyzed the relationship between marital characteristics and sexual outcomes among 1,656 married adults ages 57-85, using data from the first wave of the National Social Life, Health and Aging Project. They noted that people who survive until their 50th year of marriage — among whom the slight rebound occurred — are relatively few in number.

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