According to Prevention magazine, http://www.prevention.com/homepage, locking eyes with your dog produces the happiness hormone, oxytocin, in your bloodstream. Various studies have implicated ox­y­to­cin, which is pro­duced by the pi­tu­i­tary gland at the base of the brain, in human and animal bond­ing be­hav­ior. Ex­pe­ri­ments have found that just sniff­ing ox­y­to­cin will in­crease a per­son’s trust­ful­ness of others….