Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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People are more likely to tilt their heads to the right when kissing instead of the left (65 percent of people go to the right!)
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In 2010, Gary Richmond was beaten into a coma. He woke up with amnesia and no memory of his wife of 20 years. Subsequently, he ended up falling in love with her all over again!
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When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
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Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
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Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
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