Abstract: A system used by a child diagnosed with ADHD and including a wearable device equipped with motion sensors and optionally a location or GPS tracker as a safety feature and using cloud based technology to facilitate the transfer of information among users. Motion data is used for two main purposes: 1) to objectively measure hyperactivity levels on specific metrics and optionally to detect presence or absence of aggression; and 2) to track the child's sleep-wake patterns (given a high percentage of children with ADHD are known to have sleep disorders). Behavior feedback is provided in real time based on the data obtained. Additional sensors may also be used to aid the assessment of child's behavioral functioning and sleep-wake patterns.