14/08/2014 16:55 BST | Updated 22/05/2015 10:12 BST

Children Who Don't Smile In School Photos 'More Likely To Divorce'

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Little boy is smiling happily before his first day at school wearing uniform including tie.

If you're wondering what the future holds for your child's relationships, take a look at their school photos.

For, according to a scientist, if a child looks unhappy at the time the snaps were taken, they are five times more likely to get divorced than those who smile the most.

Nothing to do with having to straighten their tie and brush their hair into a hideous side parting, then? Apparently not.

An American psychologist claims that people who stayed married in later life tended to smile more widely and warmly in their school photographs, while future divorcées were more likely to smile weakly, if at all in their photos.

Matthew Hertenstein, an associate professor of psychology at DePauw University, Indiana, measured individuals' emotional displays based on photographs in hundreds of school yearbooks to see if he could predict who would get divorced.

In an article for