Brushing their teeth. Taking a shower. Cleaning up after themselves. What’s going on when kids seem to ignore these must-do tasks? And what can parents and caregivers do to change that?   In this episode of “In It,” hosts Gretchen Vierstra and Rachel Bozek talk with Brendan Mahan. Brendan is an executive function coach and the host of the podcast “ADHD Essentials.” He offers tips and strategies to help parents and caregivers understand why some kids avoid working on their personal hygiene.