for men, it has to do with testosterone, for women, it's oxytocin, correct?rticular effect on women and not men. it actually lowers women's stress levels. so when a guy brings a woman a flower. he doesn't have to bring two dozen roses, that creates the same amount of oxytocin. her stress level goes down. if he gives her a hug, if he's affectionate. if he looks her in the eye when she talks. a lot of the things that men stopped doing -- they do in the beginning and then they stop doing it. >> win us over and then it's -- >> it's the little things that make a big difference. men don't live in that world. if you do little things for men, they look at it as little things. it doesn't matter much. >> that's one way if you're a man you can help elevate the y oxytocin levels in your life and brings it romance back. the women see the romance wither away in the relationship. how about for men? you elevate the oxytocin level. >> what rebuilds testosterone in a man. he has to work hard. if he's out of work, that's not going to happen. if he's working hard, he runs out of

more research shows that we interact with animals, oxytocin levels spike with finesse and also within animals and is a level of mutualism that occurs. i'm not surprised when we hear about iraq war veterans and afghanistan war veterans come back with post-traumatic stress disorder and they get a therapy dog or just get a companion and get off of their medication. they're able to leave their home and go grocery shopping and get their health back, in a better state. i think animals have an incredible rehabilitative quality. i think this bond give the head start in terms of doing the right thing for animals. that can be trumped by culture and economics. if you are selfish, if you want to exploit animals because you have the opportunity to do so historically there have been laws to constrain that. will we are trying to do is set standards for society to see that animals are properly cared for. i look at a western tradition, i look at the instinct of bond and also look at the our declaration of independence, our constitution, founding documents of our country, founding document of western d

. >> we know that when a mother or father handles their own infant, they see a big increase in oxytocinevels in their bloodstream. we know that this rise in oxytocinis associated with a decline of stress hormone. the animal is doing the same thing for us. it's producing a rise in that level bringing down our stress level. >> reporter: it makes perfect sense. the burdens of life are he'sed by pes. more burdens than ever mean more pets than ever. it also explains the pampering that can sometimes seem like people taking care of people, not animals. no surprise given that a poll conducted by sunday morning reveals 89% of us consider our pets to be part of the family. >> people are... they get something from animals, these companion animals, these pets, which is not identical to what we get from other people but is certainly similar. >> reporter: so keep all this in mind the next time you're ready to roll your eyes at one of those over-the-top pet people. what do you think your kids? >> i can give you a couple of examples. i was talking to one of my kids on the phone, and i yelled, "no! " an