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🏃 KNOW PRIMARY · AGES 6–11

HEALTH &
FITNESS

💪 How Tiny Tears Turn Into Bigger, Stronger Muscles!

📖 200 Topics 🆓 FREE + PRO ⏱️ 5 min per comic 🧠 Quiz included
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YOU TRAIN
Muscles Work Hard
🔬
TINY TEARS
Fibres Get Stressed
🍳
PROTEIN
Food Repairs Them
😴
REST
Body Rebuilds
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STRONGER
Bigger Than Before
💪 MUSCLE GROWTH BASICS
TOPIC 02 · HEALTH & FITNESS · YOUR AMAZING BODY
PAGE 1 OF 5 — MEET YOUR MUSCLES
600 HELPERS
Muscle Growth Basics comic panel: 600 helpers, your body's movers
YOUR BODY'S MOVERS
You have more than 600 muscles all over your body, and they are the parts that let you move. Muscles are made of bundles of thin threads called fibres, packed together like a bundle of straws. When your brain sends a signal, the fibres pull on your bones and your body moves. Every smile, jump, and high five is your muscles doing their job.
⚡ DID YOU KNOW?
The strongest muscle for its size is your jaw muscle, and the busiest muscles of all are the tiny ones that move your eyes.
FLEX!
MADE OF FIBRES
Muscle Growth Basics comic panel showing made of fibres
🧵 Thin fibres bundled together
💥 They pull to make you move
PULL POWER
Muscle Growth Basics comic panel showing pull power
🦴 Muscles tug on your bones
🤝 They work in pairs to bend and straighten
PAGE 2 OF 5 — THE CHALLENGE
WORK IT HARD
Muscle Growth Basics comic panel: work it hard, exercise makes tiny tears
EXERCISE MAKES TINY TEARS
When you give your muscles a tough job, like climbing, pushing, or lifting something heavy, the fibres get stressed and form tiny tears. This sounds scary, but it is a normal and healthy part of getting stronger. The little tears are far too small to see or to hurt you. They are simply a signal that tells your body it is time to make those muscles tougher.
PUSH!
PUSH
Muscle Growth Basics comic panel showing push
🙌 Push-ups challenge your arms
🧱 Pushing works the chest too
PULL
Muscle Growth Basics comic panel showing pull
🧗 Climbing makes you pull hard
💪 Your back and arms get stronger
CARRY
Muscle Growth Basics comic panel showing carry
🎒 Carrying weight works your legs
🦵 Squats and hopping help too
PAGE 3 OF 5 — THE REPAIR CREW
PROTEIN POWER
Muscle Growth Basics comic panel showing protein power
🥚 Eggs, beans, and milk give protein
🐟 Fish, nuts, and chicken do too
BUILDING BLOCKS
Muscle Growth Basics comic panel showing building blocks
🧱 Protein acts like tiny bricks
🔧 The body patches each tear
REPAIR TIME
Muscle Growth Basics comic panel: repair time, bigger and stronger
BIGGER AND STRONGER
After exercise, your body gets busy fixing those tiny tears, and it uses protein from your food as the building material. Here is the clever part: it does not just repair the muscle back to how it was. It makes the fibres a little thicker and stronger so they are ready for next time. This is why eating good food after being active helps you grow.
⚡ DID YOU KNOW?
Protein is found in eggs, beans, milk, fish, and nuts. Your body cannot store extra protein for long, so you need some every day.
REBUILD!
PAGE 4 OF 5 — GROWTH HAPPENS AT REST
SECRET INGREDIENT
Muscle Growth Basics comic panel: secret ingredient, muscles grow while you rest
MUSCLES GROW WHILE YOU REST
Here is a surprise: your muscles do not actually grow during your workout. They grow afterwards, while you are resting and especially while you are asleep. During sleep your body does its best repair work, fixing fibres and making them stronger. That is why a good night of sleep matters just as much as the exercise itself. Rest is not lazy, it is part of getting strong.
ZZZ!
SLEEP WELL
Muscle Growth Basics comic panel showing sleep well
😴 Most repair happens in sleep
🌙 Aim for 9 to 11 hours a night
REST DAYS
Muscle Growth Basics comic panel showing rest days
🛌 A rest day lets muscles recover
🔁 Then they are ready to work again
BE PATIENT
Muscle Growth Basics comic panel showing be patient
📅 Strength builds over weeks
🌱 A little practice often is best
PAGE 5 OF 5 — BUILD STRONG
THE WHOLE RECIPE
Muscle Growth Basics comic panel: the whole recipe, your muscle recipe
YOUR MUSCLE RECIPE
Now you know the full recipe for stronger muscles. First you challenge them with active play and exercise, which makes tiny tears. Then you feed your body protein so it has building material. After that you rest and sleep so the repair crew can work. Do this again and again and your muscles grow bigger and stronger. Strength is not magic, it is just effort, food, and rest working as a team.
STRONG!
KEEP IT UP
Muscle Growth Basics comic panel showing keep it up
🤸 Play and move most days
🥛 Eat good food and drink water
REMEMBER
💪 KEY FACTS
Exercise makes tiny tears in muscle fibres, and protein plus rest repairs them back bigger and stronger than before.
🧵 Muscles are made of bundles of fibres
🍳 Protein gives the building blocks
😴 Muscles grow during rest and sleep
🧠 QUIZ TIME!
MUSCLE GROWTH BASICS · 5 QUESTIONS
QUESTION 01
What are your muscles made of?
QUESTION 02
What happens to muscle fibres when you exercise hard?
QUESTION 03
Which nutrient does your body use to repair muscles?
QUESTION 04
When do your muscles mostly grow?
QUESTION 05
What is the full recipe for stronger muscles?
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