👋 Let’s Remember First

• A gene is a tiny part of DNA.

• Genes give instructions to cells.

• Those instructions help make the body — like the heart, brain, arms, and legs.

• Genes don’t “think,” but they act in ways that help them stay copied and passed on.

Now here’s the big question:

Why do we feel things like love, fear, and anger?
Could genes have something to do with it?

Let’s take a close look — one simple step at a time.

❤️ What Is Love, Really?

When we say “love,” we can mean many things.

• Love for your parents

• Love for a pet

• Love for a best friend

• Love that grown-ups feel for each other

But inside your body, love is a feeling that makes you want to stay close to someone.

It can make you want to:

• Hug

• Help

• Protect

• Stay near

But why would your body want to do that?

Let’s look at this from a gene’s point of view.

🧬 Genes Want to Stay Safe

Let’s remember — genes don’t have thoughts.
They don’t feel happy or sad.

But if a gene helps the body stay safe, have children, and pass the gene on, then that gene gets copied more.

So if a gene causes a feeling that helps you:

• Stay close to your family

• Help your baby

• Pick a kind partner

• Protect people like you

Then that gene is likely to stay.

Over thousands of years, feelings like love helped families survive.
That’s why love-feeling genes spread.

😱 What About Fear?

Now let’s think about fear.

Fear is what you feel when something might hurt you.

• A loud sound

• A big animal

• A stranger

• A fall

Fear makes your heart beat fast.
It makes you run away or hide.

From a gene’s point of view:

Fear helps you stay alive.

If your body reacts quickly to danger, you have a better chance to stay safe.
And if you stay safe, you might grow up and pass on your genes.

So fear is a body alarm, built over millions of years by gene instructions.

😡 And What About Anger?

Now let’s talk about anger.

Anger is what you feel when:

• Someone takes your toy

• Someone hurts your friend

• Someone lies or breaks a rule

It makes you want to shout, fight, or stop the unfair thing.

But again, let’s think like a gene.

What if a gene made you feel angry when someone tried to hurt you or your family?

Then you’d be more likely to:

• Fight back

• Protect your things

• Stop bullies

Genes that cause anger at the right time could help the body survive and protect others.

So anger — like love and fear — may have started as a survival tool.

💡 Feelings Are Tools, Not Just Magic

Feelings seem like magic, right?

But they are made from:

• Brain chemicals

• Nerve messages

• Body reactions

And what tells your brain to make those?

Genes do.

Genes tell the body:

• When to feel

• How much to feel

• What the body should do when a feeling happens

So even though feelings are not “things” you can touch,
they are real body actions, shaped by genes across time.

🔄 Why You Might Feel Differently From Someone Else

Here’s something important:

• Not everyone feels the same way.

• Some people get scared more easily.

• Others get angry more easily.

• Some people are very loving. Others take time.

Why?

Because different people have different gene versions.

We learned before:

Genes can change slightly — this is called a mutation.

These small changes may make one person’s brain more sensitive,
or another person more calm.

It’s normal. It’s natural.
It’s part of how genes work in slightly different ways in different people.

🧠 Recap

✅ Love, fear, and anger are feelings
✅ Feelings are created by body chemicals and brain signals
✅ Genes tell the body how to make and feel emotions
✅ Feelings helped humans stay safe and protect their families
✅ Each person’s feelings can be different because of gene differences