All of these activities are much more dangerous than we thought before.

To the everyday driver, we’d like to say that, anytime you’re engaging in something else while driving, that really does increase your crash risk by two to three times.

We’re spending a lot more time in our cars commuting, and we’re doing a lot more in cars, especially with new technologies. We do a lot of things and we don’t get caught. But in...

It was far more prevalent than we expected, certainly during the daytime.

This study is the first to assess which types of behavior contribute most to crashes and near crashes.