People with attention deficit disorder have difficulty concentrating, paying attention, and completing even complex tasks. They often have trouble staying still, taking their turn, and frequently act impulsively.

While these behaviors can be found in all human beings, they are unusually pronounced and prolonged in those with ADHD. They are also present in all circumstances of life (not just at school or just at home, for example.

Three symptoms characterize ADHD: inattention, hyperactivity and impulsivity. They can be present to varying degrees. For example, a child who is always "in the moon", who does not finish his homework, who does not remember instructions and who constantly loses his personal belongings, but who is not particularly agitated, could have ADHD. Another, mostly hyperactive, impulsive and restless, but who can concentrate relatively well when tasks interest him might also be affected. In general, hyperactivity and impulsivity are more pronounced in boys than in girls.

Effective and natural alternatives exist for those who suffer from memory impairments and dementia, or for those who seek to help their learning and memory capacities.