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"Love \u2014 it's nothing new. It's the most primal act of nature to ever exist, a tradition that comes from our ancestors just like we do. \nIt's also the equivalent of your brain being strung out on coke. \nIt's why when you are in love your brain literally lowers the responses to pain and makes you appreciate the world around you that much more. It even triggers the OCD center of your brain, making you addicted to your significant other. \nSEE ALSO: An Animated History of Valentine's Day\n\nAnd while science still knows very little about how love works, ASAP Science does its best to explain why finding that special someone makes you see rainbows and unicorns skipping in green meadows.\nWarning: If you currently aren't in love, this video may cause some feelings of negativity and remorse. \nBONUS: 10 Cheeky Valentine's Day Tees for Couples\n\n\n10 Cheeky Valentine's Day Tees for Couples\n\n\n\n\n\n\n\n1. Two Pixel Heart T-Shirt\n\n\nThis design is pixel-perfect for two players. \nCost: $29\nImage courtesy of Nastalgame/Etsy\n\n\n\n\n\n\n\n\n\n\n\n2. His and Hers T-Shirts \n\n\nKeep it simple with a \"his 'n' hers\" theme.\nCost: $42.95\nImage courtesy of RegalRhinestones/Etsy\n\n\n\n\n\n\n\n\n\n\n\n3. Love Struck\n\n\nAre you \"love struck?\" Then show the world!\nCost: Varies\nImage courtesy of talk@tee\n\n\n\n\n\n\n\n\n\n\n\n4. Star Wars \"I Love You\" and \"I Know\" \n\nThese brilliant tees should raise a smile.\nCost: Varies\nImage courtesy of Star Wars\n\n\n\n\n\n\n\n\n\n\n\n5. Male and Female Awkward Dinosaurs\r\n\r\n\n\nWe think these \"awkward dinosaurs\" are adorable.\nCost: From $16.30 each \nImage courtesy of Spread Shirt\n\n\n\n\n\n\n\n\n\n\n\n6. I Love My Geek Babydoll and Classic Tee\n\n\nShow your geek love with this pair of matching tees. \nCost: $12.99 each \nImage courtesy of ThinkGeek\n\n\n\n\n\n\n\n\n\n\n\n7. Heart Giraffe\n\n\nGo cute with a pair of loved up giraffes.\nCost: Varies\nImage courtesy of talk@tee\n\n\n\n\n\n\n\n\n\n\n\n8. His and Her Valentine \n\nSpell it out with this fun pair of shirts.\nCost: $19.99 each \nImage courtesy of Skreened\n\n\n\n\n\n\n\n\n\n\n\n9. Made For Each Other\n\n\nThese are just adorable!\nCost: From $27.99\nImage courtesy of Cafe Press\n\n\n\n\n\n\n\n\n\n\n\n10. His and Hers Valentines \"Love\" T Shirts\n\n\nFinally, all you need is love.\nCost: $45\nImage courtesy of DonDeMarco/Etsy\n\n\n\n\n\n\n\n\n\n Image courtesy of iStockphoto, kroach."^^<http://www.w3.org/2001/XMLSchema#string>
<http://mashable.com/2013/02/12/science-of-love/>