Men lose interest in fashion trends and being ‘cool’ at the age of 46, a new survey has revealed.

But women put the effort in for a full 13 years longer – focusing on their appearance and general fitness until at least age 59.

The research also found women were nearly twice as likely to lack confidence in their image, with more than one third unable to claim they were at least content with their appearance.

It also emerged one third of the 2,000 men and women who took part in the study blamed a lack of happiness in contributing to their low confidence levels in the way they look.

More than half of those surveyed said they aren’t in great shape physically while a third admit they have never been the type to bother with doing exercise.