What distraction should be avoided while driving?

Using a cell phone while driving is particularly distracting and should be avoided. Engaging with a cell phone can divert attention from the road in multiple ways; this includes texting, making calls, or even just looking at the screen. The cognitive load required for these activities can significantly impair a driver's awareness of their surroundings, increase reaction times, and heighten the risk of accidents.

In contrast, while other distractions like eating snacks, adjusting the radio, or talking to passengers can also prove distracting, they typically do not involve the same level of cognitive distraction and manual dexterity as using a cell phone. For example, talking to passengers may even enhance safety since they can help the driver navigate or keep them aware of hazards. Thus, among the listed distractions, cell phone use poses the most significant threat to driving safety.