Lowry O'Mahony

And that can bring its own problems too, can't it?

Yeah, that brings problems for everybody.

Parents going to the shop to try and constantly keep their kids in shoes and clothes because boys can experience at certain points like between seven to 12 centimetres of growth in less than a year.

And so for girls, it can be eight to nine centimetres within a year, which is enormous.

And that's when you'll see parents talking about their daughters on the pitch and their sons as well, all of a sudden looking clumsy.

And they'll say, oh my gosh, yeah, like last year they were moving so well.

And this year now, they're a bit clumsy or they're a bit awkward or they're all hands and legs.

And so the bones will grow first and then the tendons and the muscles have to catch up.

And then your brain...

has to try and figure out what comes next, because your brain's used to living in the same body for maybe 10 years or, well, for girls, you know, puberty will hit kind of from eight.

For boys, generally, it's kind of 10.

But your brain is used to like looking after your body, being in control.

And now it's a completely different body.

So your brain has to catch up as to how well it's giving the commands for running and jumping and landing.

And then you can have problems like Severus disease, which is, again, the ligaments haven't caught up with the bones.

Isn't that right?

Yeah, so Severus disease, imagine, affects about 16% of adolescents, which is huge.

And it is, first of all, it's not a disease.

It's a growth related condition.

So it really only occurs when adolescents are growing.