In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
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The typical person spends about 600 hours having sex between the ages of 20 and 70.
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A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Men fall in love faster than women do.
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When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
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Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
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