Studies show that the risk of a “secret love” being revealed heightens romantic feelings for the partners, thanks to increased levels of phenylethylamine (PEA).
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The single biggest predictor of love is proximity.
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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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In medieval Italy, if a man was caught kissing a woman in public, he had to marry her whether he liked it or not.
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Brain scans show that people who view photos of a beloved experience an activation of the caudate - the part of the brain involving cravings.
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Cuddling (or other ‘love’ acts) helps to heal physical wounds faster due to the release of Oxytocin which is proven to reduce swelling.
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Holding hands with someone you love can alleviate physical pain as well as stress and fear.
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When a male gentoo penguin "falls in love" with a female penguin, he searches the entire beach to find the perfect pebble to present to her.
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