First-born kids get ‘all’ the brains – study claims

Are you smarter than your brother or sister?

Well if you’re the oldest sibling in the pack the chances are you’re the one with the brains.

That’s according to new research out today from Edinburgh University.

Their study of five around 5,000 kids found first-borns generally score higher in IQ tests from as early as the age of one.

Experts reckon it's because parents give them more mental stimulation.

We've been getting your reactions to those findings: