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04/20/2009 05:12 am ET Updated May 25, 2011

Study: More People In Love Than Previously Thought

Though it is widely held that romance and sex must ultimately yield to friendly companionship over time, new research found that's not the case. Instead about 13 percent of people reported high levels of romance in their long-term relationships, in a new study published in the March issue of the journal Review of General Psychology.

Researchers analyzed data from surveys of more than 6,000 people, including some in newly-formed pairs and many in marriages of more than 20 years. The scientists found that a surprisingly high number of people were still very much in love with their long-term partners, though the researchers drew a distinction between romantic love, which can endure, and passionate or obsessive love, which often fades after the beginning of a relationship.

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