Dogs / Behaviour

They Read Human Hormones

Dogs do not just respond to what you do — they respond to what you feel, at a biochemical level. Research has confirmed that dogs can detect:

Close-up black and white portrait of a playful furry dog showing its teeth, capturing emotion and texture.
Photo by Suvan Chowdhury on Pexels

Dogs do not just respond to what you do — they respond to what you feel, at a biochemical level. Research has confirmed that dogs can detect:

  • Cortisol (the stress hormone)
  • Adrenaline

…in human sweat and breath, and they adjust their behaviour in response.

A dog that becomes clingy, anxious, or unusually attentive when its owner is stressed is not imagining things — it is literally smelling the owner's internal state.

The implication: Your stress directly transmits to your dog. Calm handling, especially in training and veterinary contexts, is not just a nice-to-have — it changes what the dog is chemically experiencing.


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