Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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8 out of 10 people think that the first kiss indicates how the rest of the relationship will be.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Yawns are more contagious among people with closer relationships.
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According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
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Women who play video games tend to have more sex and be happier with their relationships than those who don’t.
18