"A DOG or cat owner spends roughly $10,000 on the care and feeding of his pet over its lifetime. (Dogs cost more per year, but cats make up for it by living longer.) What does he get for this investment?
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A 2006 survey of Americans by the Pew Research Center, for instance, reported that living with a pet did not make people any happier. Similarly, a 2000 Australian study of mortality rates found no evidence that pet owners lived any longer than anyone else. And last year Dutch researchers concluded that companion animals had no effect on their owners’ physical or mental well-being. Worse, in 2006, epidemiologists in Finland reported that pet owners were more likely than non-pet owners to suffer from sciatica, kidney disease, arthritis, migraines, panic attacks, high blood pressure and depression."