You might want to lie down after reading this.
Scientists are warning that sitting down is as dangerous for your health as smoking.
The average person sits for 9 hours a day, which researchers say increases your risk of heart disease, obesity, diabetes and even dying early.
Staff at Queen's University in Belfast will examine the issue after receiving 4.5 million euro in funding from the European Comission.
The four year project aims to help us live longer.
Dr Mark Tully is leading the project and has some tips on how to ensure we don't sit for too long..
