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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Couples' personalities converge over time to make partners more and more similar.
235
Historically, sweat has been an active ingredient in perfume and love potions.
309
A Korean man called Lee Jin-gyu fell in love with his large, huggable pillow and married it.
29
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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When someone looks at a new love, the neural circuits that are usually associated with social judgment are suppressed.
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Wearing red increases attraction.
30