Getting a pet improves your physical health, lowers stress, and gives you a built-in reason to stay active and socially connected. Those aren’t just feel-good claims. The benefits show up in measurable changes to your hormones, blood pressure, heart health, and even your children’s emotional development. But pet ownership also comes with real costs in time and money, so the decision deserves a clear-eyed look at both sides.
Pets Directly Lower Your Stress Hormones
When you interact with a pet, your body chemistry shifts in ways you can feel but might not realize are measurable. Spending time with a dog raises your levels of oxytocin, the hormone linked to bonding and calm, while simultaneously lowering cortisol, your body’s primary stress hormone. This isn’t a vague “pets make you feel nice” observation. It’s a documented hormonal response that happens during ordinary interactions like petting, playing, or just sitting together.
The stress-buffering effect extends beyond quiet moments at home. One study found that dog owners showed lower cardiovascular reactivity when performing a stressful task in the presence of their dog compared to having their spouse nearby. In other words, your dog may actually calm you down more effectively than another person in a high-pressure moment.
Heart Health and Lower Blood Pressure
Pet ownership appears to protect your cardiovascular system over the long term. Research on adults without major chronic conditions found that dog owners had roughly an 18% lower risk of dying from cardiovascular disease compared to non-owners. While that finding didn’t reach the threshold for statistical certainty in every analysis, it aligns with a broader pattern: pet owners tend to have healthier hearts.
The short-term effects are more straightforward to measure. Pet therapy sessions with elderly women reduced systolic blood pressure by about 3.4% and diastolic pressure by nearly 4.8%. That may sound modest, but for someone managing hypertension, those numbers represent a meaningful shift, roughly equivalent to the effect of cutting back on sodium or adding a daily walk.
You’ll Move More Without Thinking About It
Dog owners walk about 300 minutes per week with their dogs. That’s roughly 200 more minutes of walking than people without dogs get. To put that in perspective, the standard recommendation for adults is 150 minutes of moderate activity per week. Dog owners are doubling that target just by taking their dog out.
What makes this different from a gym membership or a fitness goal is that it doesn’t rely on motivation. Your dog needs to go outside regardless of whether you feel like exercising. That built-in accountability is one of the most practical health advantages of pet ownership, especially for people who struggle to maintain an exercise routine on their own.
Reduced Loneliness, Especially for Older Adults
Pets provide companionship that goes beyond simply having another living thing in the house. The effect is strongest for people who live alone. Among primary care patients with an average age of 72, those who lived alone and owned a pet had 80% lower odds of reporting loneliness compared to those who lived alone without a pet. That’s an enormous difference for a population where loneliness is closely tied to cognitive decline and earlier death.
Dog ownership specifically was linked to lower social isolation scores in a large German aging survey, likely because walking a dog forces you into public spaces where casual interactions happen naturally. You stop to chat with neighbors, meet other dog owners at the park, and become a familiar face in your community. For people who have lost a spouse or retired from work, a dog can rebuild a social routine that might otherwise disappear.
Children Develop Stronger Social Skills
If you have kids or plan to, a pet can meaningfully shape their emotional development. Children who form strong bonds with their pets score higher on measures of empathy and prosocial behavior. They also show greater self-reliance and independent decision-making skills compared to children without pets. These aren’t small differences. A systematic review of the research found that the developmental benefits clustered around social competence, social communication, and the ability to read and respond to others’ emotions.
There’s also an immune system argument for early exposure. Several studies suggest that children exposed to dogs in infancy have roughly a 50% reduced risk of developing asthma by school age, though the evidence isn’t perfectly consistent. A meta-analysis of 12 studies found a 23% reduction in asthma diagnosis for children exposed to dogs early in life. The theory is that early contact with pet-related microbes helps train the immune system to tolerate common allergens rather than overreact to them.
The Real Cost in Money and Time
None of these benefits come free. In 2025, the average U.S. dog owner spends about $2,524 per year on their pet, covering food, veterinary care, grooming, and supplies. Cat owners spend less, around $1,499 per year, but that’s still a significant recurring expense. Emergency vet visits, which aren’t always included in those averages, can easily add $1,000 or more in a single trip.
Time is the other major commitment. Dogs need a minimum of two hours of dedicated social time with people every day, and three to four hours is closer to ideal. That includes walks, play, training, and simply being present and engaged. Dogs that are left alone for long stretches without enrichment develop behavioral problems, from destructive chewing to anxiety-driven barking, which create stress rather than relieve it.
Cats are less demanding on the time front, but they still need daily play, litter box maintenance, and veterinary care. Any pet represents a years-long commitment: 10 to 15 years for most dogs, 12 to 18 for cats. If your schedule, housing, or finances are unstable, the stress of struggling to care for a pet can outweigh the benefits.
Pets Can Also Help at Work
Workplaces that allow dogs report some interesting dynamics. Employees who bring their dogs to work show greater dedication, lower intention to quit, and stronger feelings of control over their workday. They also take more short, restorative breaks, stepping away from their screens to walk or play with their dog, then returning with better focus.
The flip side is real, though. Poorly behaved dogs are a distraction for everyone in the office, not just the owner. The workplace benefit depends entirely on having a well-trained, calm animal. If your dog barks at strangers or chews on office furniture, bringing them to work creates problems rather than solving them.
Matching the Right Pet to Your Life
The health and emotional benefits of pet ownership are well documented, but they depend on a good fit between the animal and your actual lifestyle. A high-energy dog breed in a small apartment with an owner who works 12-hour shifts is a recipe for frustration on both sides. A cat might be the better choice if your schedule is unpredictable, your space is limited, or you prefer a more independent companion.
Smaller commitments can still deliver real benefits. Fish tanks have been shown to lower heart rate in dental waiting rooms. Even brief interactions with therapy animals produce measurable stress reduction. If you’re drawn to the idea of a pet but uncertain about the commitment, volunteering at a shelter or fostering an animal temporarily lets you experience the benefits before making a permanent decision.