PETS are just as good as people when it comes to providing the social support we need for psychological and physical well being. A Miami (Ohio) University department of psychology study showed that pet owners had more self-esteem and got more exercise than nonpet owners and were more conscientious and less fearful. The study also found that having a pet helped ward off negative feelings caused by social rejection. Who's the better friend - a cat or a dog? It doesn't matter; living with either one will make you happier and healthier.