Love is an incredibly complicated emotion, and while science doesn’t yet know exactly how it works, the chemicals involved are well known. The early stages of attraction are governed by serotonin (which can be responsible for a feeling of well-being), epinephrine and norepinephrine (the so-called ‘flight or fight’ hormones). The increased presence of these chemicals is responsible for the nervousness and racing heart you experience after you’ve been hit by Cupid’s arrow. Over time, the anxiety dies down and the hormones oxytocin and vasopressin begin developing long term feelings of attachment and bonding. Oxytocin is also partially responsible for the bond between a mother and her baby. Enjoy Valentine’s day with a special someone, there’s a scientific reason love is in the air!