Shih Tzu Puppy Temperament: Why “High Energy” Is Often a Misunderstanding

Shih Tzu Puppy Temperament: Why “High Energy” Is Often a Misunderstanding Many new puppy owners worry when their Shih Tzu puppy suddenly seems hyper, wild, or impossible to settle. One…

Ara HugheyAra HugheyCertified Tier II Puppy Evaluator

Mar 5, 2026
A small liver chocolate Shih Tzu, wearing a light blue dress and multiple strands of pearls sits against a white background. The words Divine Pups, Mending Hearts, Building Families appear in the top right corner.

From the Divine Pups blog

Shih Tzu Puppy Temperament: Why “High Energy” Is Often a Misunderstanding

Many new puppy owners worry when their Shih Tzu puppy suddenly seems hyper, wild, or impossible to settle. One moment they’re calm, and the next they’re zooming around the house, nipping at everything in sight, and refusing to relax.

It’s easy to assume something is wrong — or that your puppy simply has “too much energy.”

But in reality, one of the biggest misconceptions in the dog world is that a puppy’s energy level is fluid or easily changed. While training can absolutely shape behavior, temperament itself is a stable, inherited trait.

When we talk about Shih Tzu puppy temperament, we are referring to a puppy’s baseline energy level, emotional resilience, drive, and recovery time — not their zoomies, excitement, or lack of an “off switch” at eight weeks old.

 

Shih Tzu Puppy Temperament Is Not a Phase

A puppy who evaluates as medium or medium-low energy is not suddenly going to “turn into” a high-energy dog because of age, teething, or adolescence.

Likewise, a puppy with higher drive will always benefit from more intentional outlets, structure, and engagement throughout their life.

This is why formal temperament evaluations matter — and why responsible breeders rely on structured temperament assessments.

These evaluations look beyond surface-level puppy behavior and assess traits such as:

  • Energy regulation
  • Recovery after stimulation
  • Problem-solving ability
  • Sensitivity to environmental input
  • Engagement versus over-arousal

These traits are neurologically driven and genetically influenced. They do not shift dramatically with age or environment.

What does change is behavior under pressure — especially when a puppy becomes overstimulated.

 

Why “High Energy” Is Often a Misdiagnosis

In my experience, the vast majority of puppies labeled as “too much” or “wild” are not truly high energy at all.

They are overtired, overstimulated, and under-structured.

A medium-energy Shih Tzu puppy who does not get enough quality rest or mental engagement will often present as:

  • Frantic
  • Mouthy
  • Impulsive
  • Unable to settle

That behavior can easily be mistaken for high energy when, in reality, it’s a nervous system asking for regulation.

This distinction is especially important in human-focused companion breeds like the Shih Tzu, where emotional and cognitive needs are just as important as physical ones.

 

Shih Tzu Puppy Overstimulation: What’s Really Happening

Overstimulation occurs when a puppy’s nervous system is flooded with too much input at once — sights, sounds, activity, freedom, or constant interaction — without enough time to reset.

Unlike adult dogs, puppies do not naturally self-regulate well. They need structure built into their day.

When overstimulation builds, you may see:

  • Difficulty settling
  • Increased nipping or jumping
  • Ignoring cues they previously understood
  • Hyper-fixation on movement
  • Emotional meltdowns that seem to come “out of nowhere”

This is not disobedience.

It is neurological overload.

According to the American Kennel Club, puppies require significantly more rest than most owners realize, often sleeping 18–20 hours per day during early development. When that sleep is disrupted or inconsistent, behavior quickly deteriorates.

Why Your Shih Tzu Puppy Needs a Daily Schedule

One of the fastest ways to calm a puppy that seems “high energy” is to introduce predictability.

A well-structured day includes:

  • Planned awake periods
  • Intentional mental engagement
  • Short, purposeful physical activity
  • Scheduled crate naps
  • Calm transitions between activities

Crate naps are not punishment — they are nervous system resets.

A puppy who is allowed to stay awake too long, especially in stimulating environments, will rarely choose rest on their own. Instead, they spiral into overstimulation.

Daytime crating allows the brain to process stimulation, consolidate learning, and return to baseline.

Many owners say they want their puppy to sleep in bed with them — and that can certainly happen later. But during the first several months, night crating is extremely helpful for building healthy sleep habits.

Puppies who are overtired during the day often struggle most at night, creating a cycle of poor sleep and escalating behavior.

 

Mental vs Physical Stimulation

One of the most common mistakes puppy owners make is trying to wear a puppy out physically.

For intelligent companion breeds like the Shih Tzu, more physical activity without mental engagement often backfires. It builds endurance — not calmness.

Mental stimulation, on the other hand, helps regulate the brain.

Examples include:

  • Short training sessions throughout the day
  • Problem-solving activities
  • Simple cue practice
  • Enrichment toys or food puzzles

A five-minute focused training session can regulate a puppy more effectively than thirty minutes of chaotic play.

Training as a Regulation Tool

Training is not just about obedience — it’s one of the most powerful tools for reducing overstimulation.

When a puppy begins to escalate, shifting into a known behavior helps the brain re-anchor.

Simple cues like:

  • Sit
  • Down
  • Come
  • Settle or place

In these moments, the cues are not just commands — they are grounding exercises.

Highly people-oriented puppies like Shih Tzus thrive on this type of purposeful interaction. Without it, they will create their own outlets — often ones we don’t love.

Training throughout the day teaches a puppy:

  • How to focus
  • How to recover from stimulation
  • How to regulate emotion
  • How to rest after activity

 

Temperament vs Environment: Why It Matters

When families understand the difference between temperament and overstimulation, everything changes.

A medium-energy puppy is not “too much.”

They are often simply asking for clarity and structure.

By honoring temperament and supporting regulation through routine, rest, and intentional engagement, we allow puppies to grow into exactly who they were designed to be.

Calm, confident, and deeply connected to their families — which is exactly what makes Shih Tzus such beloved companions.

 

Frequently Asked Questions

Can a medium-energy Shih Tzu puppy become high energy as they mature?

No. While behavior can fluctuate based on environment and routine, baseline temperament remains stable.

How much sleep does a Shih Tzu puppy need?

Most puppies need 18–20 hours of sleep per day, especially during periods of growth and learning.

 

Is crating during the day necessary?

Yes. Scheduled crate naps are one of the most effective ways to prevent overstimulation and teach puppies to self-regulate.

Should I exercise my Shih Tzu puppy more if they seem hyper?

Not necessarily. Hyper behavior is often a sign of fatigue or overstimulation, not a lack of exercise.

Why does training calm my puppy down?

Training provides focus, predictability, and mental engagement, which helps regulate the nervous system and reduce overstimulation.


author avatar
Ara Hughey
Filed under: Dog Behavior

Free guide

The 12 temperament traits, explained

Know what to look for before you fall in love with a photo.

Two minutes

Which temperament fits your home?

Take the quiz and know your match before the photos arrive.

Ara Hughey

Written by

Ara Hughey

Ara raises Shih Tzus in Houston, Texas, and writes about temperament, development and the small daily things that make a good match. Every puppy is born with a divine purpose.

Not sure yet?

Find the temperament that fits your life

The quiz takes two minutes and tells you exactly what to look for.

Ready to meet them?

See who’s ready to come home

Every puppy has a health record and a temperament score.

Keep reading

More from the blog

Shih Tzu Lifespan: How Long Do Shih Tzus Live?

Shih Tzu Lifespan: How Long Do Shih Tzus Live?

The typical Shih Tzu lifespan ranges from approximately 10 to 18 years, making these affectionate little dogs a meaningful, long-term addition to the family. However, how long an individual dog lives depends on much more than their breed. Genetics, nutrition, physical...