You have no doubt seen it, and each time you do, you're being put in more danger.
Figures collated by a car insurance company found that thousands of people still make calls from behind the wheel - something which can have deadly consequences.
You can see the full report from Dan Ashby below.
More top news
Staying cold. Overnight frost and ice. Cloudier and wetter during Sunday but milder
A cat from York is looking for a new forever home after undergoing surgery to remove a large undigested rat from her stomach.
Icy patches will be a hazard on some untreated roads, pavements & paths. Some injuries are possible from slips and falls on icy surfaces