Skip to main content

Can dogs smell stress? A new study reveals all

The results could have an impact on how we approach dog training

Beagle puppy training and sniffing person's hand lying in grass
Soloviova Liudmyla / Shutterstock

We’ll never stop feeling amazed by how much dogs tune into humans. Because our species have evolved together over the course of thousands of years, we have a unique understanding of our pups and they get us, too. Science has often speculated that our stress might directly impact canines, and now we have receipts. So, can dogs smell stress? A group of researchers in the U.K. set out to get to the bottom of this question.

Can dogs smell stress?

A pit bull under a table with carpet on floor
Mike Burke / Unsplash

A recent study confirms that dogs respond to human stress, and it can even change their behavior. The researchers recruited 18 dogs (a relatively small sample size) for the experiment and also human subjects. The people were unknown to the dogs and did not interact with them directly. Instead, they used sweat-soaked rags to give the esteemed pup scientists a whiff of stress or unstressed human. When they smelled stress, the dogs were more cautious and pessimistic overall (you can check out the exact details of the experiment in this article).

Recommended Videos

Dr. Zoe Parr-Cortes, lead author and a veterinarian, explained, “‘It basically shows that the stress smell might affect how [dogs] respond to ambiguous situations … They might be less likely to try something risky if they think they’re going to be disappointed.'” To be honest, we aren’t terribly surprised by the findings since we’ve always suspected that our beasties know when we’re upset.

How does human stress impact dogs in everyday life?

Girl training black and white border collie dog puppy
ILya Soldatkin / Shutterstock

Researchers indicated these behaviors might continue outside of the lab and affect daily life, including how we train dogs. “When your owner is training you, they’re probably not giving you maybe as many treats if they’re really stressed,” remarked a Ph.D. student who studies comparative cognition. That’s important because we might inadvertently confuse or even weaken our own training regimen by approaching the task from a place of anxiety.

If dogs pick up that we’re stressed about training them, they could get nervous as well. Bringing both positive reinforcement techniques and a good attitude to training sessions becomes even more important with this data. Our four-leggers will still know and respond accordingly even when we don’t look anxious to another human.

Luckily, there’s a simple cure here: Petting a dog has shown to decrease human stress. That means you can always give Fido a scratch to bring down your cortisol level — and theirs. So, while our negative emotions can influence our pooches, we may also boost each other up (interestingly, in this study, the relaxed-smelling rags had no impact). Set aside some cuddle time with your fur baby to counteract your training tension, and work closely with a trainer as needed. Dogs respond to consistency and rewards, two things that should keep them happy and your coaching stress free.

Rebekkah Adams
Rebekkah’s been a writer and editor for more than 10 years, both in print and digital. In addition to writing about pets…
What you need to know about dogs with blue eyes
Blue eyes are a rarity that may come with some health risks
Upside down brown dog with blue eyes

Blue-eyed dogs are striking, both because of their vivid irises and because of how rare they are. After all, even though most puppies are born with blue eyes (their irises haven't developed melanin yet), most of them experience eye color changes around 1 month old. And while there’s almost nothing sweeter than staring into the brown eyes of an adoring pet, those dog breeds with blue eyes are, well, a sight to behold.

Whether you're lucky enough to have a blue-eyed dog or are just curious about these gorgeous dogs, read on to discover what causes this beautiful abnormality. We’ll share which dog breeds naturally have blue eyes, why that occurs, and if blue-eyed dogs are at risk for health problems as a result.
What dog breeds have blue eyes?

Read more
This is where dogs like to be pet: The spots they can’t resist
These are the top places to pet your dog (and the ones to avoid)
A woman pets her dog in a field

One of the best parts of owning a dog is providing pats, scritches, and belly rubs. Our buds seem to love this as much as we do, and research says that petting a pooch gives a mood boost to both humans and animals. Even though we know that pups love pats, we should still respect their boundaries and only touch them in the areas they like. While every fur baby has personal preferences, we'll cover the common areas where dogs like to be pet.
Why dogs like to be pet

About 20,000 years ago, dogs decided they preferred hanging out with humans for nourishment rather than hunting their own food. Along the way, we became more than just a meal ticket to them, and now most dogs are solely companions (of course, many still work demanding jobs as service animals or alongside police officers).

Read more
7 health problems boxer owners should look out for
Why do boxers have so many health problems? Here are some answers
Boxer dog lying on the sofa looking to the side

When considering different dog breeds to add to your family, it's important to weigh the pros, the cons, and everything in between. You need to consider the breed's size, demeanor, and exercise needs, but one of the most essential topics to research is a dog breed's health.
So what about boxers? These energetic mastiff relatives are famous for their goofy personalities and squished faces, but there's so much more to them than that. Let's dive into common boxer dog breed health issues so prospective dog owners can know what to look out for. With a little research and a trusted veterinarian on your side, you'll be well prepared to care for your new boxer BFF.

Do boxers have many health problems?

Read more