Newton's puberty series starts here. It's normal for some parents -
- to feel embarrassed. You have been warned.
Line Jansrud
Today we're going to talk about...
...about tits!
There.
This is a tit. A grownup, fully developed tit.
But before it got here, a lot happened.
Before puberty there's no difference between the chests of boys and girls.
Both are equally flat.
When the girl is 10 - 11 years old, her ovaries deep inside her belly, -
- begin to produce the sex hormone oestrogen.
Over time the result is...tits.
It normally begins as a small swelling behind the nipple.
One tit often develops first, and they're usually tender.
The nipple and surrounding area, the areola, also grow and darken.
But both the colour and size vary enormously from girl to girl.
But why do girls develop tits?
Because this... might appear really unnecessary.
Well, it is because of this.
Milk, as most people know.
But what exactly is a tit?
Concealed in all tits are the mammary glands, the milk factory.
About 15 to 20, each with its own milk duct, leading out through the nipple.
They're situated like this, close together.
Small tits have just as many mammary glands as big ones.
Hence they produce just as much milk.
For the milk factories to start, the body has to have born a baby.
Tits come in all forms, shapes and sizes.
Melons, pears, jugs, baps, udders, pointed, balloons, raspberries.
Tits.
What determines how big the tits grow is simply fat.
A tit is mammary glands, milk ducts and fat.
With a tiny breast button at the peak.
Nice? And when the tits grow, the question arises:
Should I use one of these or not?
There are no rules.
If the tits don't grow that big, like here, a bra isn't really necessary.
But many wear them anyway because they like them.
But in this case a bra may be a good idea.
This girl needs a brassiere -
- in order to be comfortable jumping, dancing and running.
One thing's for sure, there's a bra for every tit.
And all tits can nourish a baby.
But it's a good idea to wait before you have a baby.
Subtitles: Tone Sutterud