Nadine Harris : Some kids have ` ` toxic stress '' and not attention - deficit ( hyperactivity ) disorder . In many cases , it 's a legitimate issue and can require medication , therapy or both . Harris : Toxic stress can disrupt a child 's brain development and affect immune systems . She says parent or guardian is best protected against effects of toxic stress . Harris : The Too Small to Fail initiative can help parents increase children 's well - being .
Nadine Harris : Some kids have ` ` toxic stress '' and not attention - deficit ( hyperactivity ) disorder . Harris : Toxic stress can disrupt a child 's brain development and affect immune systems . She says parent or guardian is best protected against effects of toxic stress . Harris : The Too Small to Fail initiative can help parents increase children 's well - being .