Most of us are in awe – or disbelief – when we hear that a couple has been married for 50 years or longer. These days few marriages, let alone relationships, last that long. For instance, according to the U.S. Census Bureau, 76 percent of men who married in 1955 to 1959 stayed married for at least 20 years, while only 58 percent of men who married in 1975 to 1979 stayed married as long. Marital longevity also declined for shorter anniversaries or couples that stayed together five, 10 or 15 years.classic-romantic-films

But even if your relationship or marriage lasts for 10 years or more, it doesn’t mean it’s overflowing with romance. So what’s the secret to keeping romance alive in long-term relationships? Perhaps a clue lies in how you define romance, as revealed in a study published in the Review of General Psychology.

“Many believe that romantic love is the same as passionate love,” said lead researcher Bianca P. Acevedo, Ph.D. “It isn’t. Romantic love has the intensity, engagement and sexual chemistry that passionate love has, minus the obsessive component. Passionate or obsessive love includes feelings of uncertainty and anxiety. This kind of love helps drive the shorter relationships, but not the longer ones.”

Here are other ways to keep romance alive in your relationship: