Scientists have revealed that sitting down for long periods of time really does give you a bigger butt.

The research found that the added pressure put on areas of the body used for sitting or lying down produces up to 50 percent more fat in those isolated parts.

More disturbingly though, the study explains for the first time how even those with healthy diet and exercise habits will be affected if they spend long periods sat behind a desk.

Get your booty up and moving!