You are spreading mis-information. Attention, and lack of it, is something humans have understood for thousands of years. 1) stimulants and narcotics are two v

You are spreading mis-information. Attention, and lack of it, is something humans have understood for thousands of years. 1) stimulants and narcotics are two very different things, with diametrically opposite effects. 2) Not everyone can improve performance, due to U-shaped response curve. Those that are functioning optimally will actually see their performance decline. 3) ADHD is one of the best understood disorders. Impaired working memory (i.e. ability to concentrate) can be easily diagnosed quite definitively with CPT: https://en.wikipedia.org/wiki/Continuous_performance_task https://en.wikipedia.org/wiki/Continuous_performance_task It is of course personal choice in the end to decide on treatment, but if the ability to concentrate is in the bottom 1-5% - it is going to be painfully obvious to any half-decent paediatrician.