This is just outdated, bad and dangerous advice that a ton of recent research invalidates.

1. Ritalin, and other stimulants are not cognition enhancing for non-ADHD adults and may in fact do the opposite.

https://www.cam.ac.uk/research/news/smart-drugs-can-decrease...

2. > Because the doctor will rigorously apply artificial and unreliable diagnostic categories backed up by invalid and arbitrary screens and queries to make a diagnosis. So after this completely subjective and near useless evaluation is completed, your doctor should be able to exercise prudent clinical judgment to decide if Ritalin could be of benefit.

What else can you do for psychiatric conditions? We don't have a magic ADHD-o-meter but know that it statistically impacts lifespan, health, etc. Even for more objective measures like blood glucose, BP, BMI, clinical interventions are based on discrete thresholds that don't exist in nature.