Peter Attia, M.D.

If he's unhappy, he will attack the larger, older boy.

He'll hit anything and anyone that stands in his way.

Whereas the middle one is not quite that bad.

Yeah, that's funny.

I feel horrible saying all this stuff.

My wife's going to kill me.

She's like, you make them sound like monsters.

They're not monsters, but it's like they're boys and this is what boys do.

But with other kids, they're more...

in control, but with each other, they're at their worst.

And which, of course, I think is normal for male siblings.

But my point being is just even between them, there's quite a difference in aggression.

And maybe it's birth order.

Maybe when you're the younger one, you have to stand your ground even more.

I guess my point is, should a parent just say, look, I'm just going to let these kids do what they're going to do and understand that there are differences.

Some boys are going to be aggressive.

Some are going to be less aggressive.

Some are going to play rough.

Some are not going to play that rough.

Is the best thing you can do as a parent from any available evidence, just let them do their thing?