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Autism Spectrum Disorder in Children What is autism spectrum disorder in children? Autism spectrum disorder (ASD) is a problem that affects a child’s nervous system and growth and development. It often shows up during a child’s first 3 years of life. Some children with ASD seem

Anatomy and Function of the Heart Valves What are heart valves? The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood

Oppositional Defiant Disorder (ODD) in Children What is oppositional defiant disorder (ODD) in children? Oppositional defiant disorder (ODD) is a type of behavior disorder. It's mostly diagnosed in childhood. Children with ODD show a pattern of uncooperative, defiant, and hostile

Posttraumatic Stress Disorder (PTSD) in Children What is posttraumatic stress disorder (PTSD) in children? Posttraumatic stress disorder (PTSD) is a mental health problem. It can affect people of all ages. A child with PTSD keeps having scary thoughts and memories of a past event

Tourette Disorder in Children What is Tourette disorder in children? Tourette disorder (TD) is a neurological disorder. It is also called Tourette syndrome. The disorder causes repeated tics. Tics are sudden, uncontrolled vocal sounds or muscle jerks. Symptoms of TD often start