Answer:
signs of 80-HD are being unable to sit still, especially in calm or quiet surroundings.
constantly fidgeting.
being unable to concentrate on tasks.
excessive physical movement.
excessive talking.
being unable to wait their turn.
acting without thinking.
interrupting conversations.
causes can be In addition to genetics, scientists are studying other possible causes and risk factors including: Brain injury. Exposure to environmental (e.g., lead) during pregnancy or at a young age. Alcohol and tobacco use during pregnancy and Nearly every mainstream medical, psychological, and educational organization in the United States long ago concluded that Attention-Deficit/Hyperactivity Disorder (ADHD) is a real, brain-based medical disorder.
Step-by-step explanation: