Free Parent Guide
Free Guide · 10–18 months

Your baby suddenly became unmanageable?
Welcome to the one-year crisis.

Throwing everything, banging their head, clinging to you, crying for no reason — you haven't done anything wrong. This is the first major developmental crisis.

👶 Relevant for ages: 10–18 months
How to recognise it

7 signs of the one-year crisis

🌪️
Deliberately drops and throws things
Not naughtiness — this is the very first scientific experiment: 'what happens if…?' The brain is building cause-and-effect connections in real time.
😤
Head-banging or biting
Baby feels big emotions but has no words yet. The body becomes the only communication tool available. Normal, and it passes.
🚶
Wants to do everything alone
Baby has just discovered they are a separate person from you. This is the start of independence — even though it looks like chaos.
😭
Meltdowns over tiny things
Not manipulation. The nervous system cannot yet regulate emotions. The child suffers from the intensity as much as you do.
🌙
Sleep regression
The brain is building new connections at enormous speed — this disrupts calm sleep. Sleep regression during a crisis is the rule, not the exception.
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Intensified attachment to parent
Baby has realised they are 'separate' — and that's frightening. You are their safe base, so clinging intensifies. This is healthy.
🙅
'No' shaking or refusals
The first 'no' is not defiance. It's the discovery of personal will. Celebrate quietly: a personality is emerging.
Why this happens

What's happening in the brain during the one-year crisis

Between 10 and 18 months, there is an explosive growth of neural connections. For the first time, baby becomes consciously aware of themselves as a person separate from you — a monumental psychological event.
Language is not yet available — baby feels a great deal but cannot express it. Body and behaviour become the primary channel of communication.
Daniel J. Siegel's research shows: the 'lower brain' (emotions, instincts) dominates the 'upper brain' (logic, self-control) at this age. Baby is physically unable to 'calm down on command'.
The peak of the crisis is 12–15 months. Most children stabilise by 18 months. The crisis is a sign of healthy development — not a problem to be fixed.
What to do

6 responses that genuinely work

01
Redirect — don't just forbid
Instead of 'don't throw' → 'let's throw the ball into the basket'. The brain needs to satisfy the impulse, not suppress it. Give a safe alternative.
02
Keep the routine as an anchor
During a crisis, predictability is the best stabiliser. The same order of meals, sleep and walks reduces baby's anxiety significantly.
03
Name the emotion out loud
'You're angry. That's okay. Mum is here.' Baby doesn't fully understand the words yet — but the tone and presence regulate them better than anything else.
04
Don't react to throwing
Eye contact + your emotional reaction = baby will repeat it. Calmly pick it up, offer a different activity. No lectures — they're too young.
05
Say 'yes' more often
Instead of prohibitions, organise the environment. Remove dangers, allow exploration of everything else. Baby feels freedom and pushes against limits less.
06
Take care of yourself too
You cannot be a calm container from an empty reserve. Ten minutes a day for yourself is not a luxury — it's a condition for effective parenting.
Common mistakes

What not to do during the one-year crisis

Shouting back during a meltdown
Stay calm — simply be present
During a full meltdown, baby cannot process words. Your calm is the only thing that works.
Shaming: 'you should be ashamed'
Acknowledge: 'you're angry, I understand'
Shame at this age doesn't teach behaviour — it only damages self-worth.
Ignoring to 'wait it out'
Stay physically nearby, without words or giving in
Ignoring intensifies attachment anxiety. Presence without reaction is containment.
Worrying this will last forever
Know: the crisis ends at 16–18 months
It's temporary. Understanding this reduces your own stress and gives you patience.
From a real parent
"I started the course when my son was 11 months. He was throwing everything and I thought something was wrong. Then I understood — he was a brilliant little scientist. I just didn't know how to read him."
— parent from the TOLEMYNI programme

This guide is brought to you by TOLEMYNI — a children's education project helping parents raise confident, healthy and curious kids from 0 to 6 years through science-based activities.

🌐 tolemyni.com 📍 Live sessions in Luxembourg ✉️ tolemyni@gmail.com