http://www.independent.co.uk/life-style/love-sex/attraction/?service=Rss http://www.independent.co.uk/life-style/love-sex/attraction/hormones-learning-the-rules-of-attraction-1044079.html http://www.independent.co.uk/life-style/love-sex/attraction/hormones-learning-the-rules-of-attraction-1044079.html ]]> <p>A woman's smile may not be all it seems. When her zygomaticus major cheek muscle moves the upper lip upward and outward to produce that warm smile, it may be more than a friendly gesture – it could be a sign of hormones at work.</p> Attraction Tue, 02 Dec 2008 00:00:01 +0000