There’s a common conception of what children will be like, depending on the order they were born. But a new study by the medical journal PNAS has found that no such link actually exists.

The data implies that there’s no real statistical significance concerning how birth order affects personality. So it doesn’t really matter if you were first up or came in late, siblings will be there person they’re going to be.

Read the full article: Birth order stereotypes debunked by fascinating new research