Dogs have an incredible sense of smell - up to a million times better than that of humans!
Their nose helps them gather information about their environment, other animals and even our mood.
Discover six surprising things dogs can smell, but humans can't.
1. Emotions
Dogs can smell how you are feeling.
When people experience stress, anxiety or happiness, their hormones change.
These hormonal changes spread through breath and sweat - and dogs notice this unerringly.
For example, they recognize the "stress hormone" cortisol or the "happiness hormone" oxytocin.
2. Cancer
Multiple studies have shown that dogs can detect certain cancers through smell.
In 2019, BioScentDx demonstrated that dogs could identify blood samples containing cancer cells with an accuracy of 97%.
This may make dogs valuable partners in early disease detection in the future.
3. Drugs
Tracking dogs have been used to detect drugs for years.
Their nose can pick up the slightest chemical changes - even if the smell is mixed with other strong odors.
That's why you often see them at airports or police checkpoints.
4. Pregnancy
Many dog owners notice that their dog behaves differently during pregnancy.
Dogs can smell hormonal changes in women, so they intuitively sense that something is changing.
Scientific evidence is still lacking, but numerous stories suggest that dogs possess this "magical" sensitivity.
5. Weapons and explosives
Trained dogs can even smell weapons, gunpowder and explosives.
Thanks to their keen sense of smell, they play a crucial role in security checks, including at airports or events.
They detect danger even before people notice anything suspicious.
6. Bed Bugs
Bed bugs are small, fast and hard to find - except for dogs!
Some pest control companies use specially trained dogs to detect these insects.
Their nose recognizes even small numbers of bedbugs long before they become visible.
Clearly, a dog's nose is a true miracle tool.
Whether they smell emotions, diseases or pests - dogs surprise us again and again with their special talents.
Want to experience these smart noses up close? Become
dog sitter via Petbnb
and discover for yourself how special dogs really are.
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