Education, Mental Health, Social Emotional HealthStress and the Brain By Momentous Institute May 27, 2015 We all know that too much stress isn’t healthy for us. In this short video you’ll see exactly what stress does to our brain and how it affects young children. Watch as Director of Child and Adolescent Therapy, Fred Lines and clinician Frankie Perez break it down in simple terms. What does stress do to the brain? Spills and sirens and bears, oh my!