06/06/2026
I came across a great explanation to something this week. So with permission to share, here it is:
Why is my dog shaking? They must be terrified! 🥺 Can we bust a major biological myth? 👇
If you own a smaller breed, especially a Toy Poodle, Maltese, or Chihuahua, you have likely seen them turn into a little vibrating washing machine the moment they walk into the vet clinic, a busy park, or the grooming salon.
As pet parents, our hearts instantly sink. We assume they are frozen in pure terror or experiencing trauma.
But biologically? You might be completely misreading the room.
Welcome to “Psychogenic Tremors” (aka: The Sports Car Effect) Smaller breeds possess a naturally high metabolic rate and an incredibly sensitive nervous system. Their internal engines essentially “idle” at a much higher RPM than a big Golden Retriever.
When they enter an environment where they know a specific routine is about to happen, their brain instantly releases a massive wave of adrenaline and cortisol. This isn’t automatically a sign of fear, it is pure anticipation and hyper-focus.
Because they have such tight, compact little muscle masses, that sudden, explosive surge of kinetic energy has nowhere to go. Their nervous system processes this sudden backlog of internal electricity by shivering to safely burn it off.
Think of it like this: It is exactly the same as a human getting intense butterflies, a racing heart, or shaky hands right before they step onto a stage to give a big speech or ride a roller coaster. They aren’t in physical danger or pain; their body is just firing on absolutely all cylinders to prepare for what’s next! ⚡
The moment they get into their rhythm and that adrenaline naturally flushes out of their system, the vibrations stop.
So the next time your little one starts to shiver at check-in, take a deep breath. They aren’t broken, and you shouldn’t feel guilty, their little sports car engine is just revving up! 🤍
