The Oregon Department of Education’s new guidance on school cellphone policies says a significant percentage of cellphone use both in and outside of schools is spent on social media.

Students, parents, teachers, principals and even Gov. Tina Kotek have all had their say in the debate about cellphones in schools.

Now, the Oregon Department of Education is weighing in with policy guidance issued last week.

“We know that cellphones can offer benefits to students, including those who may have health and safety concerns, or where students with disabilities require assistive technologies for additional support,” said Charlene Williams, the Department of Education’s director, in a press release announcing the guidance.

“At the same time, it is important for schools to work purposefully to create conditions that promote deep thinking and sustained attention, free from the constant interruptions that cellphones and mobile devices can introduce.”

The state‘s guidance cites research on the harmful effects of phone use and specifically social media, saying, “excessive cellphone and social media use is correlated with an increased risk for anxiety, depression, and decreased attention spans.”

Earlier this year, U.S. Surgeon General Vivek Murthy warned against excessive use of social media, prompting discussions across the country about how to minimize young people’s use of popular applications like Instagram and Snapchat.

Kotek, who previously expressed support for a statewide approach to limiting cellphones, said in the press release that cellphones can have a negative impact on student learning.

“Cellphones are a distraction and can harm students’ mental health and well-being if used inappropriately,” Kotek, a Democrat, said.