Cell phones may not be just a cancer risk. In a survey conducted by Hagerty Insurance, it's driving under the influence of cell phone use that annoy drivers the most.

University of Utah psychologists published a study showing that motorists who talk on cellular phones (either handheld or hands-free) are as impaired as illegal drunken drivers (the legal blood-alcohol limit of 0.08 percent).

Just as you put other people at risk when you drive under the influence of alcohol, you put others at risk when you drive under the influence of cell phone use.

Impairments associated with driving under the influence of cell phone use can be as profound as those associated with driving under the influence of alcohol. Clearly the safest course of action is not to use a cell phone while driving.

The study reinforced earlier research showing that hands-free cell phones are just as distracting as handheld cell phones because it's the conversation itself, not just manipulation of a handheld phone that distracts drivers from road conditions.

This kind of information helps to debunk the notion that fiddling with music, cigarettes, eating, applying makeup or shaving is a far bigger distraction than picking up a cell phone and using it.