D. Healthy Living · Healthy Living

My Brain's Alarm: Stress, Worry and Calming Down

D1.6 D3.4 A1.1 A1.2About 40 minutes

Learning goals

I can explain how my brain responds when it thinks there is a threat (fight, flight or freeze).
I can describe how that response can affect my thoughts, feelings and actions.
I can name things around me (external factors) that can cause strong feelings like worry.
I can use strategies to calm my body and manage strong feelings.

Words to know

threat
Something that might be dangerous, or that the brain thinks is dangerous.

stress
How your body and mind react to a challenge or a threat.

fight, flight or freeze
The three ways the body gets ready when the brain's alarm goes off: get ready to fight, run away, or stay very still.

amygdala
A small part of the brain that acts like a smoke alarm and watches for danger.

external factor
Something outside of you, in the world around you, that affects how you feel.

strategy
A plan or a tool you can use to help.

Your brain has an alarm!

Imagine you're walking in the woods and you hear a loud CRACK. Your heart pounds. You stop and freeze. Then you see... it was just a squirrel on a branch. Phew!

What happened? Your brain's alarm system went off to keep you safe.

How the brain's alarm works

Deep in your brain is a small part called the amygdala (say: uh-MIG-duh-luh). It works like a smoke alarm. When it thinks there's a threat, it sets off the alarm, very fast, before you even have time to think.

Your body gets ready to:

Fight: feel angry, want to push or yell.
Flight: want to run away or hide.
Freeze: go very still, can't move or talk.

Body clues: heart beats fast, breathing gets fast, muscles get tight, sweaty hands, "butterflies" in your tummy, feeling hot.

When the alarm is ringing, the thinking part of your brain (at the front) has a harder time working. That's why it can be hard to think clearly, remember things or make good choices when you're scared or very upset.

When the brain thinks there's a threat, the alarm goes off and the body gets ready for fight, flight or freeze. Calming strategies help you feel calm again.

Real alarm or false alarm?

Like a smoke alarm that beeps when you burn toast, the brain's alarm sometimes goes off when there is no real danger, like before a test, a spelling bee or a hockey game. The feelings are real, but you are safe. You can tell your brain: "Thanks, alarm. I'm okay." When the danger is real, like a dog growling at you, the alarm helps you get to safety.

What around us can cause strong feelings?

External factors are things outside of you that can lead to strong feelings like worry, sadness, anger or excitement:

Environment: loud noise, crowds, a messy or crowded space, a thunderstorm, very hot or cold weather, scary news.
Changes: moving, a new school, a new baby in the family, a pet dying, someone being sick.
People: an argument with a friend, being left out, family stress.
Pressure: tests, performances, big games, too many activities, too much screen time.

All feelings are okay. It's normal to feel worried sometimes. What matters is what we do with our feelings.

Calm-down strategy	How to do it
🌬️ Belly breathing	Breathe in through your nose for 4 counts, feeling your belly fill like a balloon. Breathe out slowly through your mouth for 4 counts. Repeat 5 times.
🖐️ 5-4-3-2-1 senses	Name 5 things you see, 4 you can touch, 3 you hear, 2 you smell, 1 you taste.
🚶 Move your body	Go for a walk, stretch, or do 10 jumping jacks.
🗣️ Talk about it	Tell a trusted adult or friend how you feel.
🌲 Get outside	Spend time in nature: notice the trees, the sky or the snow.
💬 Kind self-talk	Say: "I can handle this." "This feeling will pass." "I'm safe."

Choose the strategies that work best for you.

The 5-4-3-2-1 calm-down strategy counts down through your senses. Paying attention to what is around you helps your brain's alarm settle.

Worked example

Let's notice the alarm

Before her piano recital, Sofia's heart is racing, her hands are sweaty and she can't remember the first notes.

Body clues: racing heart, sweaty hands: her alarm has gone off.
Thinking: she can't remember the notes, because the thinking brain has a harder time when the alarm is ringing.
Real or false alarm? She's safe. It's a false alarm caused by pressure (an external factor).
Strategy: Sofia does belly breathing 5 times and says, "I've practised. I can do this."

Sofia notices her alarm, knows she's safe, and uses breathing and kind self-talk to calm down.

Worked example

Let's find the external factor

Owen has felt grumpy and worried all week. His family is moving to a new town, boxes are everywhere, and it's noisy at home.

External factors: a big change (moving) and his environment (messy, noisy home).
These can cause worry and grumpiness.
Strategies: talk to his parents about his worries, find a quiet corner, go outside for a walk, and make a plan to video call his friends.

Moving and a noisy, messy home are external factors. Owen can talk about it, find calm spaces and plan ways to stay connected.

Just for fun

The name amygdala comes from the Greek word for almond, because this little part of your brain is shaped a bit like one. Your alarm system is almond-sized!

Hands-on activity

My calm-down kit

You need: a box or bag, paper, markers.

Practise belly breathing: lie down and put a small stuffed animal on your tummy. Watch it rise and fall as you breathe slowly.
Draw an outline of a body. Colour or mark where you feel stress, such as your tummy, chest or hands.
Make strategy cards: one card for each calm-down strategy you like.
Fill your box with your cards and calm things, like a soft toy, a favourite book, a squishy ball, or crayons and paper.
Write a list of 3 trusted adults you can talk to.

Your turn

What part of the brain works like a smoke alarm?

Name the three ways the body gets ready when the alarm goes off.

Name three body clues that the alarm is ringing.

Why is it hard to think clearly when you're very scared?

What is an external factor? Give an example.

Describe how to do belly breathing.

Is it okay to feel worried sometimes?

More practice: warm-up

When the alarm says "run away", is that fight, flight or freeze?

Can the brain's alarm go off when there's no real danger?

Name one calm-down strategy.

Is a thunderstorm an external factor?

Who could you talk to when you feel worried?

More practice: on your own

Your friend freezes and can't speak during a class presentation. Explain what might be happening in their brain.

Sort into environment, change or people: a new baby sister, a crowded noisy mall, a fight with a best friend.

Why does belly breathing help when you feel stressed?

Give an example of when the alarm is helpful.

You feel angry and want to yell at your brother. Which response is this, and what could you do instead?

Challenge

Explain the difference between a real alarm and a false alarm, with one example of each.

Make a plan for a morning when you are worried about a big test.

Why might too much screen time before bed affect your feelings the next day?

Check your understanding

Quiz

What does the brain's alarm do when it thinks there's a threat?

Which is a body clue that the alarm is ringing?

Which is an external factor that could cause worry?

Why can it be hard to think clearly when you're very scared?

Which is a good calm-down strategy?

Feeling scared before a spelling test when you're safe is a...

For parents and teachers

Big idea: This lesson covers two Grade 3 mental health literacy expectations: explain how the brain responds when it thinks there is a threat, and how that response might affect thoughts, emotions and actions (D1.6), and reflect on external factors, including environmental factors, that may contribute to experiencing a range of strong feelings, including uncomfortable feelings such as worry, and identify ways to help them manage these feelings (D3.4).

How to help at home:

Use the "brain alarm" language: "Your alarm is ringing. Let's breathe together." Calm yourself first; children borrow our calm.
Practise belly breathing when everyone is calm, so it's ready when needed.
Notice patterns: tiredness, hunger, noise and transitions often set off big feelings.
Before changes (moving, a new sibling, a new school), talk about what will happen and invite questions.

When to get help: if worry or sadness lasts for weeks, stops your child from doing everyday things, or affects sleep and eating, talk with your family doctor or school. Kids Help Phone (1-800-668-6868, or text CONNECT to 686868) is free, 24/7.

Common difficulties: believing worry means something is wrong with them. Reassure them that alarms are normal and helpful, and that calming skills get stronger with practice.

This lesson also builds identifying and managing emotions (A1.1) and stress management and coping (A1.2).