There is a correlation between having a pet such as a dog or cat and an improved health status. Exactly how this works was the subject of a recent article (See: American Heart Association: Pets, especially dogs, are good for the heart). Below is an excerpt from it:
An animal companion may not just warm your heart, but also help you maintain a healthy heart....Pet ownership, particularly dog ownership, is probably associated with a decreased risk of heart disease," [said the] director of the cardiac care unit at Baylor College of Medicine....[T]here are 78.2 million owned dogs and 86.4 million owned cats in the United States. Thirty-nine percent of U.S. households have at least one dog, while 33 percent have at least one a cat. The AHA's committee reviewed previous research on how pets affect human health, and they found studies that showed owning a pet was associated with fewer heart disease risk factors and increased survival among patients. In particular, owning a dog was shown to reduce cardiovascular risk, perhaps because dog owners are more likely to engage in physical activities just by walking them. One study of over 5,200 adults showed that dog owners were more active than non-dog owners, and were 54 percent more likely to reach recommended levels of physical activity....[A cardiologist said that] "there are plausible psychological, sociological and physiological reasons to believe that pet ownership might actually have a causal role in decreasing cardiovascular risk." [He also] pointed out though if people buy a pet but sit around all day, smoke, eat whatever they want and don't monitor their blood pressure, heart benefits aren't likely."
So walking your dog improves one's health by providing an incentive to walk him around the block a few times a day. This probably won't help if the owner engages in other unhealthy habits. You all know what they are. I also believe that caring for a pet has unique psychological benefits such as relieving stress. These benefits have been shown to be more effective than ACE inhibitors in lowering blood pressure (see: Pet Dog or Cat Controls Blood Pressure Better than ACE Inhibitor):
[A professor of medicine] assessed the effect of social support on heart rate, blood pressure and renin reactivity in response to mental stress in a group of 48 stockbrokers, all of whom were being treated with lisinopril, an angiotensin converting enzyme (ACE) inhibitor used to treat hypertension. She found that in 24 participants selected at random to add a dog or cat to their treatment regimen, these cardiovascular measures remained significantly more stable during stressful situations than in 24 participants in the non-pet-owner group, who served as controls.
The bottom line is that rather than spending money on drugs and surgery for yourself, redirect it to the veterinary bills for your dog and cat. It's a better investment.
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