with Chloe and the Nurb.

Oh, how I love it when the fair comes to town.

Me too.

There are so many rides.

The Immune System Bouncy Castle, the Nose Tornado,

oh, the Tunnel of Lungs.

Oh, whoa, look at this silly looking guy.

I think we're in the Hall of Mirrors.

Amazing.

Look at me in this one.

There are a lot of people here with a lot of different body

shapes.

Why is everyone so different?

They're not conveniently Nurb or Chloe shaped.

It's your genes that help determine your body shape

and size.

These jeans make me look like a rock star.

Not those jeans, the genes I'm talking about

are the ones passed down to you from your parents.

Those genes are in every cell of your body.

Genes are instructions that tell your body

what color your eyes will be, how tall you'll be,

and lots of other stuff.

Oh, I get it.

We end up looking like the people in our family.

Usually, but if you're talking about how much people weigh,

genes aren't the only thing.

Your weight has a lot to do with how much you eat

and how active you are.

So what you're born with and what you do with it.

Exactly.

To really understand weight, you need to know the formula:

Energy in minus energy out equals your weight.

Your body takes energy in when you eat, like so.

Food and most drinks contain units

of energy called calories.

Calories are bad though, right?

The book on dieting I'm reading, "Calories

Are the Most Evil Thing on the Planet,"

seems to hint strongly at that.

No, Nurb, your body needs calories to keep

it working the way it should.

Your body needs calories to do important stuff

like breathing, keeping your heart beating and digesting

food, and growing.

Kids needs calories to grow.

I'm done growing, at least in an upward direction.

Right.

When we're done growing, we don't need as many calories.

We also burn calories when we're active and move around a lot,

like so.

Wait up!

The trick of it is the balance between calories you eat

and the calories you burn.

Oh, you mean energy in minus energy out equals your weight.

Right.

You want to eat enough calories, but not

more than your body needs.

What does you body do with the calories it doesn't use?

Your body takes those extra calories

and turns them into fat.

Everyone has some fat, but a person who has too much fat

may not be as healthy as he or she could be.

Interesting.

So what's the right amount to weigh?

There isn't one right weight.

People come in different shapes and sizes.

Two people can weigh different amounts and still be healthy.

Ask your doctor if you're concerned about your weight.

He or she can help.

I will ask when I go for my next checkup.

Oh, look, a seesaw ride.

This is a perfect example of balance.

You don't want to eat too much and you

don't want to sit around too much, because then you

won't get enough exercise.

You want to eat the right amount of calories

and be active every day.

I get it.

Hey, where are you going?

No sense being at the fair and not

enjoying some of this fabulous food.

Sure, it's OK to have a treat at the fair.

But on most days, you should eat a variety of healthy foods.

Sure thing.

I'll have the mega jumbo twist cone.

Have you ever heard of portion control?

OK, the smaller one.

And the fizzy soda drink.

How about a water instead?

That's the best drink to drink most of the time.

OK, water it is.

Oh, look, Nurb.

It's my favorite healthy food arcade game, Flying Food.

Nurb, do you know how to eat a variety of healthy foods?

Sure, you want to eat from all the food

groups: the cotton candy group, the corn dog group, the ice

cream group.

Nurb, the five food groups are fruit,

grains (especially whole grains like whole wheat bread,

brown rice, or oatmeal) protein (like meat, fish, eggs, nuts,

or beans) vegetables, don't forget some dairy

(like milk, cheese, or yogurt).

OK, your turn, Nurb.

What do I do?

Get something from each of the five food groups on the plate.

Hurry up!

OK, let's start with oatmeal.

Whole grains.

Next, I'd like some yogurt.

That would splat nicely.

Great job.

You've got dairy.

Now let's go for protein.

Time for some fish.

Only two left.

What are they?

Uh, fruits and vegetables.

I'd like some grapes and some broccoli.

You did it, Nurb.

Thanks, Chloe.

I think I'm getting the hang of this healthy eating stuff.

You sure are.

How far you've come.

I know, I know.

Chloe, do you smell that?

What is it, Nurb?

They've got fried chicken, fried candy bars, fried fries!

How to choose, how to choose!

And yet, when I think of it, I'm not exactly hungry right now.

You have learned so much in a short time.

Right you are, Chloe.

Hey, let's ride one more ride.

Something scary?

Just a little teacup ride.

Sounds good.

Huh, not scary at all.

Whoa!

[MUSIC PLAYING]