A study out this week in the Journal of Attention Disorders suggests that an approach to ADHD emphasizing healthy living may significantly improve symptoms. Since ADHD undermines executive function, the skills we need to plan and sustain routines, it’s no surprise that it affects sleep, nutrition, and exercise, as well as pushing kids towards an unhealthy relationship with video games and technology...A separate study out this spring takes a unique approach to changing habits...Here’s what to try out for your child, teen, or yourself.