India, Nov. 3 -- Opposites attract; we all have heard this, but when it comes to long-term love, similarities between two individuals matter more. Dr. Mark Travers, a psychologist who specializes in relationships, wrote for CNBC that shared habits in couples help keep their bond strong, leading to lasting relationships. Here are the five traits that people in the happiest relationships have in common:

A couple who laugh together stay together. According to Dr. Travers, lasting love is a result of finding humor in daily life moments. Happy couples often make stressful situations lighter with laughter and turn them into manageable moments. With time, these laughs and inside jokes become reminders of everything they have faced together.

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