dr. victoria dunkly, author of the book "reset your child's brain y she coined a name for kid's obsessionces, electronic screen syndrome. >> the child goes into a state of hyperarouse will and the brain starts to malfunction. so you see problems with behavior and mood. >> jackson, it is hard for him to focus. i would say my daughter, she's more behavioral issues. >> reporter: dr. dunkly convinces the family to do a four-week electronic fast. >> and then we can see, do they still have attention symptoms, are they still misbehaving as much. >> what we're going to do is actually have no devices four four weeks and we're area going to see what happens. >> mom locks devices in storage, and as the days go by the kids start to try some new things. >> when the kids come home and they just go outside, which isn't something they had done before. >> reporter: and they join a class. >> well, me and taylor, we both joined jujutsu. >> reporter: at the end of the four week fast, everyone is spending more time together as a family. >> i like to play with my sister even more than i did before. >> reporter

dr. victoria dunkly, author of the book "reset your child's brain."ith devices. electronic screen syndrome. >> the child goes into a state of hyperarousal and the brain starts to malfunction. you see problems with focus, behavior and mood. >> jackson for him to focus. i would say my daughter, she has more behavioral issues. >> reporter: the doctor convinces the family to do a four-week electronic fast. >> then we can see, do they have attention symptoms, are they really misbehaving as much. we will have no devices for four weeks. and we're going to see what happens. >> reporter: mom locks the devices in storage. and as the days go by, the kids start to try some new things. >> when the kids come home they just go outside, which isn't something they had done before. >> reporter: and they join a class. >> well, me and taylor we both joined jinjitsu. >> reporter: everyone is spending more time as a family. >> i like to play with my sister even more than i did before. >> reporter: jackson is spending more time reading. taylor's meltdowns decreased and her