Many dog owners wonder why dogs sniff around. The answer is actually quite simple. Sniffing reduces dogs’ stress levels. Because they smell a lot when they’re sniffing, endorphins are released. This hormone promotes relaxation. If you have a dog that sniffs frequently, it will most likely have lower cortisol levels and will also sleep better. Cortisol is the stress hormone in dogs. Dopamine is also a very important hormone, as it gives your dog a pleasant feeling. Dopamine is also released in dogs when they sniff. When dogs sniff, they focus on one sense: smell. The other senses, such as hearing and sight, are less active at that time. Smell is the most important sense for dogs. They use their noses to gather information, not only about their immediate surroundings but also about the wider environment. Sniffing is natural behaviour for dogs. They become stressed and frustrated when they are not allowed to sniff. Telling a dog not to sniff is like telling them not to be social. Sniffing, detecting scents and leaving scent marks acts as a form of social media for them.

Reasons why dogs sniff

Dogs sniff for various reasons.

• Analysing scents

Dogs can detect smells up to 100,000 times better than humans.

• Communicating with other dogs

When your dog is sniffing, it can communicate with other dogs through scent; they leave scent marks via their urine and glands in their paws.

• Exploration and orientation

Dogs understand their surroundings and feel safer after they have sniffed

• Searching for food or toys

Dogs naturally use their noses to track down food.

• Stress reduction

When dogs sniff around, it has a calming effect on them. A sniffing walk is often much more tiring than a normal walk

Is sniffing tiring for dogs?

Sniffing is very tiring for dogs; it can be just as tiring as physical exercise due to the mental stimulation. Sniffing activates and exercises the brain. This can make them feel very tired after lots of sniffing, just like after a walk. If your dog is exploring their surroundings calmly and quietly, mainly using their nose, this suggests it is a relaxing walk and that the environment they are in is not causing them any stress.

Why does my dog sniff so much during walks?

Dogs sniff most whilst walking. When they do so, they gather a lot of information from their surroundings. Sniffing also reduces stress in dogs. The brain produces certain chemicals that make your dog calmer and lower their heart rate. By sniffing, dogs can detect scents left behind by other dogs. They can track down food or detect changes in their surroundings. What dogs sniff for most are territorial markings, the presence of other animals and potential dangers. It is a natural instinct and provides a wealth of sensory information.

Is it okay for a dog to sniff around during walks?

Yes, definitely let them sniff; it makes your dog happy and relaxed. It is also very important that your dog listens and doesn’t drag you from bush to bush. However, with a few commands, it is perfectly possible to let your dog know when sniffing is allowed and when it isn’t.

How tiring is sniffing for your dog?

Sniffing can also help your dog if they struggle with behavioural problems such as destructiveness or hyperactivity. Because sniffing is so tiring for dogs, it allows your dog to burn off their energy in a positive way.

What do dogs think when they’re sniffing?

Dogs think various things whilst they are sniffing; they use their noses to understand the world, just as we use our eyes. When your dog is sniffing, he might be thinking:

• Who’s been here?
• What has happened?
• Is there food nearby?
• Is there any danger?
• How do I feel?

Which scent calms dogs?

Something well known for its calming and relaxing effect is lavender oil. This applies not only to people, but also to dogs. You can use lavender oil if you want your dog to be or become a bit calmer. Lavender oil is often used during periods when the dog is under a lot of stress, such as fireworks, strong winds and thunderstorms.

How important is sniffing for dogs?

Sniffing is very important for dogs; they don’t just sniff to explore, it also has mental and physical benefits. Sniffing can contribute to your dog’s mental stimulation; it challenges your dog’s brain. This can help with boredom and stress. It also has a relaxing and stress-reducing effect; dogs that sniff frequently are generally calmer and happier. Sniffing can also help with your dog’s behaviour; when dogs get enough opportunities to sniff, they are less likely to develop behavioural problems. A sniffing walk, where your dog is given plenty of time to explore all sorts of smells, can often be more tiring than a long walk without any sniffing. It is therefore an ideal way to keep your dog happy and content!

Should I stop my dog from sniffing?

It’s best not to stop your dog from sniffing, precisely because it’s a natural and important activity. Sniffing has so many benefits for your dog.

When should you limit sniffing?

Of course, you must stop your dog from sniffing if they find themselves in a dangerous situation. Think of rubbish, glass or toxic substances. You can incorporate sniffing breaks during your walks; your dog will quickly learn this. If your aim in walking is to keep moving to teach your dog something, it’s best to alternate sniffing breaks with walking. You can let your dog sniff, but they must of course still listen; you can therefore make your dog stop sniffing if they no longer respond to your command.

Conclusion: Why do dogs sniff?

Sniffing is a natural and essential activity for dogs. It allows them to gather information, communicate, reduce stress and engage in mental and physical stimulation. Endorphins and dopamine are released in dogs when they are sniffing, which promotes relaxation and a sense of happiness. So give your dog plenty of opportunities to sniff, but make sure there is a good balance between sniffing and listening. Also reward your dog when he or she does this well.