DHD
             usually report the following effects when successfully treated with Ritalin:
             •Improved ability to complete their work
             •Improved intensity of attention and longer attention span
             •Reduced distractibility
             •Reduced restlessness and overactivity
             •More elaborate expressive vocabulary
             •Better written expression and handwriting (especially in children)
             •An improved sense of "alertness"
             •Improved memory for visual as well as auditory stimuli
             Ritalin exhibits pharmacological activity similar to that of amphetamines. Ritalin's exact
             mechanism of action in the CNS is not fully understood, but the primary sites of activity appear
             to be in the cerebral cortex and the subcortical structures
             ...