The World Health Organization (WHO) has released its first ever guidance on how much time young children should spend using electronic devices with screens. On Wednesday, WHO announced that children under five years old should not spend more than one hour a day watching such devices. Less than that is better, officials say, and children under age one should not get any screen time at all. “What we are cautioning on is over use of those electronic screen times with young children,” WHO expert Fiona Bull told reporters.

The new guidelines are somewhat similar to advice from the American Academy of Pediatrics. That group recommends children younger than 18 months should avoid screens other than video conferences over the Internet. It says parents of children under age two should choose “high quality programming” with educational value. Boys and girls should be able to watch the program with a parent and understand what they are seeing.