When people think of puppy development, they often picture the fun, playful stage around six or eight weeks old. But what most new puppy families don’t realize is that some of the most critical moments in a puppy’s life happen before their eyes are even open.
At Divine Pups, our hands-on developmental approach begins on day three of life with a protocol known as ENS, or Early Neurological Stimulation. This scientifically backed method is one of the most powerful tools we use to support lifelong emotional and physical health in our Shih Tzu puppies.
What Is ENS (Early Neurological Stimulation)?
ENS is a set of very brief, carefully timed exercises designed to stimulate a young puppy’s nervous system during a very specific stage of development — from day 3 to day 16 after birth. This short period is known as the neonatal stage, when puppies are still completely dependent on their mothers and unable to regulate their own body temperature or even eliminate waste on their own.
Why do we begin so early? Because during this window of helplessness, small doses of controlled stimulation have a profound impact on development.
Eustress vs. Distress: Finding the Sweet Spot
When applied correctly, ENS creates a form of eustress — a healthy stress that strengthens a puppy’s nervous system, much like a workout strengthens a muscle. This is not to be confused with distress, which is overwhelming and harmful (like overexercising or scaring a young puppy).
The goal of ENS is to provide just the right amount of challenge to activate development without creating fear. You might think of it like a gym session for the nervous system — short, purposeful, and beneficial.
What ENS Looks Like in Action
At Divine Pups, we begin ENS on day 3 using the following gentle exercises:
- Tactile Stimulation: We lightly tickle the bottom of the puppy’s paws and between their toes using a Q-tip or fingertip for 3–5 seconds.
- Head Up / Head Down Positioning: Holding the puppy upright (head up, tail down) and then inverted (head down, tail up) for 3–5 seconds.
- Supine Position: Gently cradling the puppy on its back for a few seconds.
Each of these activities is brief and always done with care. The goal is not to overwhelm — it’s to introduce mild, beneficial stress that stimulates the brain, heart, and central nervous system.
Long-Term Benefits of ENS
The positive effects of ENS are well-documented and last far beyond puppyhood. Puppies who receive ENS early in life have been shown to experience:
- Stronger heartbeats
- Improved cardiovascular function and circulation
- Better stress tolerance throughout life
- Greater resistance to disease
- More stable and confident behavior
It’s no coincidence that timid, fearful, or reactive dogs often lack this kind of early stimulation. ENS helps puppies process novelty, recover quickly from stress, and approach the world with curiosity — not fear.
ENS and Socialization: The First Step Toward a Confident Companion
ENS also plays a vital role in preparing puppies for the next developmental phase: socialization. By gently stimulating the nervous system before their eyes are even open, we set the stage for each puppy to be more open to new experiences, human handling, and problem-solving later on.
This foundational work makes the rest of our curriculum-based development smoother and more impactful. It’s why so many Divine Pups transition easily into homes, public settings, and even therapy or support roles.
The Science Behind It
ENS is not just theory — it’s backed by research. A foundational study by Fox and Stelzner in 1966 demonstrated that puppies who received early stimulation had enhanced nervous system development, better stress resilience, and improved learning outcomes.
ENS is still used today by military and service dog programs across the country — and by responsible breeders like us who are committed to raising emotionally and physically sound companions.
It’s Not Just About Genetics — It’s About Expression
Some breeders claim that good genetics are all you need to produce good dogs. While strong genetics are important, they’re only part of the story.
Think of genetics as a recipe book — full of potential. ENS and other early developmental tools are how we make sure those recipes are used at the right time and in the best way.
This is known as epigenetics — how the environment influences gene expression. A puppy might have the genetic potential for confidence, but how they’re raised determines whether that potential is fulfilled.
ENS helps us unlock the best in every puppy, regardless of bloodline.
Every Day Matters
At Divine Pups, we take this responsibility seriously. From day one, we are doing everything we can to ensure each Shih Tzu puppy we raise is strong, sound, and emotionally prepared for the world. ENS is one of the earliest tools in our toolbox — and it sets the tone for everything that follows.
Because we don’t just want you to receive a healthy puppy.
We want you to receive a confident, balanced companion who’s ready to thrive.
