About a fifth of the time, a teenage driver is looking at their smartphone rather than the road or their rearview, a new study says.

Teen drivers spend an average 21% of each trip looking at their phone, according to results published today in the journal Traffic Injury Prevention.

Worse, these were...

Most folks tap away at their smartphone for fun, communication or information.

But such tapping may also help them track the progress of a rare degenerative brain disease, researchers say.

Five simple smartphone-measured tests of movement control can provide quick and regular insight into the motor function of someone with Huntington’s disease, researchers reported June 9 in t...