Adolescence Isnโt Disobedience: Understanding the 7-Month-Old Spaniel Brain
I recently responded to a post about a 7-month-old Cocker Spaniel who was โpulling like a trainโ and they were asking for a harness that โstops pullingโ. Other phrases that kept coming up were ones I hear all the time:
โHeโs suddenly forgotten everything.โ
โHis attention span is like a gnatโs.โ
โHeโs pushing boundaries and meeting force with force.โ
Welcome to canine adolescence.
This phase can feel like all your hard work has unravelled overnight, but what youโre seeing isnโt stubbornness, dominance, or your dog โbeing naughtyโ. Itโs biology.
The Teenage Dog Brain (or: Why Your Dog Canโt Put the Brakes On)

A 7-month-old dog is roughly equivalent to a 14-year-old human teenager.
Their body is developing rapidly, hormones are surging, and crucially โ their frontal cortex hasnโt caught up yet.
The frontal cortex is the part of the brain responsible for:
- Impulse control
- Emotional regulation
- Decision-making
- The ability to pause and think before acting
In dogs, this area doesnโt fully mature until around 18 months of age.
So when we expect a teenage dog to โjust make better choicesโ, weโre asking them to use a part of the brain that quite literally isnโt finished yet.
Be the Swan ๐ฆข (Even When Youโre Screaming Inside)
I often tell clients to be like a swan.
On the surface: calm, graceful, unbothered.
Underneath: paddling like mad, thinking โfor goodness sakeโ, and feeling frustrated.
Feeling frustration is normal. Itโs human. Itโs part of our emotional repertoire.
But dogs donโt need us to win against them โ they need us to be smarter than their nervous system.
Meeting force with force during adolescence often escalates behaviour, because the dog simply doesnโt have the neurological capacity to regulate themselves yet.
What Adolescent Stress Actually Looks Like

During this phase, dogs become more easily frustrated, and stress shows up in ways that often confuse owners.
You might see:
- Scratching in the middle of play
- Yawning when nothing seems tiring
- Shaking off when theyโre not wet
- Avoiding things they were previously fine with
- Lunging or barking at familiar sights
- Sudden โout of contextโ behaviours
These are stress displacement behaviours โ signs that the dogโs nervous system is struggling to cope.
When pressure continues, dogs may opt for space-increasing behaviours, such as:
- Pawing at you to make you stop
- Mouthing or grabbing clothing
- Snapping to create distance
This isnโt aggression โ itโs communication.
Redirect, Donโt Confront
Instead of challenging the behaviour head-on, I prefer redirection using cues the dog already understands well.
One of my favourites is:
โWhatโs this?โ
It taps into curiosity and makes the dog come towards you to see what theyโre missing out on.
If you can teach:
- โUp upโ โ you can teach โOffโ
- โCome and seeโ โ instead of pushing away
Always ask yourself:
What is the opposite of the behaviour I donโt want?
Examples:
- Jumping up โ a solid sit on a mat
- Mouthing โ stopping and picking up a toy
- Recall issues โ working very close for a long time to build value in staying with you
Distance is earned. Adolescents need to relearn proximity.

Puberty = Instincts Switching On
Puberty typically hits between 7โ9 months, and this is when a dogโs breed-specific behaviours really start to emerge.
Under pressure or frustration, dogs revert to what they were selectively bred to do.
For example:
- Spaniels like to hold and possess
- Retrievers like to carry things in their mouths
- Guardian breeds may grab and pull down
These behaviours often increase when:
- The dog is frustrated
- The dog doesnโt know whatโs being asked
- Training lacks clarity
- Tasks change too quickly
Dogs donโt default to calm thinking under stress โ they default to instinct.
Why Frustration Tips Over So Fast (Especially on Lead)
Frustration builds pressure in the nervous system, and pressure needs an outlet.
This is why:
- Dogs are often more reactive on lead than off
- Tension on the lead escalates behaviour
- Lack of movement increases emotional overflow
Under pressure, behaviour can escalate quickly into:
- Barking
- Lunging
- Snapping
Not because the dog is โbadโ, but because their coping capacity has been exceeded.

A Note on Harness Battles
If getting equipment on and off has become a battle, you have two options:
1. Change the Equipment
Some dogs struggle with harnesses that go over the head.
A step-in or Velcro harness can remove that stress entirely.
2. Go Back a Step
Slow the whole process down.
- Break it into smaller steps
- Reinforce calm behaviour
- Reduce the โfaffโ
Sometimes removing the equipment altogether for a short reset helps, because the dog has learned to predict:
โSomething uncomfortable or stressful is about to happen.โ
If in doubt:
- Change the cue
- Change the equipment
- Start again from scratch
There is no failure in resetting โ only information.
The Takeaway
Adolescence isnโt a training problem.
Itโs a developmental phase.
Your dog isnโt giving you a hard time โ theyโre having a hard time.
With clarity, patience, and an understanding of whatโs happening inside that teenage brain, this phase doesnโt have to be something you โget throughโ.
It can be something you guide them through โ calmly, consistently, and with empathy.
And yesโฆ sometimes while paddling furiously under the surface ๐ฆข
If you appreciated this post feel free to check out my previous post Help My Puppy Wonโt Settle At Night here๐
Before you go you might want to check out my 12 Days Of Woofmas by adding your email to my newsletter sign up page Here to get access to 12 days of canine science right into your inbox there will also be 12 videos to accompany those emails on a private section of this website as well as daily tasks to complete via email – so if you want to keep yourself busy over the Christmas period feel free to sign up now ๐
Love from your friendly neighbourhood dog trainer and behaviourist.
S x



























































































































