As we learn more about how cell phones are impacting kids' health and wellbeing, schools across the country are trying to adapt.

More than two-thirds of U.S. states now have some restrictions over cell phone use in public schools. We hear about how efforts are going in San Diego County.

Plus, we sit down with an author of a first-of-its-kind study that looked at the effectiveness of cell phone bans in schools.

Guests:

• Katie Anastas, education reporter, KPBS
• Hunt Allcott, professor of environmental social sciences, Stanford University