Earlier quoted context omitted.
Not really. It’s true that ADHD patients will likely react differently to stimulants, but the exact differences have been greatly exaggerated online. There are some studies showing that some people respond better to Ritalin than Adderall and vice versa. Prescribers should try switching medications if the patient doesn’t respond. Most people will experience increased focus when first taking stimulants, ADHD or not. Ma…
> Most people will experience increased focus when first taking stimulants, ADHD or not. This isn't true, studies has shown that taking stimulants has no effects on grades for normal people. The "increased focus" they experience is just perception and not fact, it can even hurt their ability to focus. Being able to sit with a task for hours isn't "focus". https://www.webmd.com/add-adhd/news/20180726/adhd-meds-no-he..…
> The students also showed an improvement in their alertness and their ability to focus, the researchers found.
The idea that only ADHD people see improved focus from stimulants is purely false, as indicated by the article you provided. It's a dangerous misconception, as many people use this misunderstanding to self-diagnose as ADHD when they take their friends' stimulant medication and experience improved focus. We need to be clear that non-ADHD patients still feel increased focus from stimulants as well.
You are correct that over-medicating with stimulant medications can harm certain types of cognitive function, in both ADHD and non-ADHD people. Dopamine has a well-known inverted U shaped response curve for certain cognitive processes. Going too far past the optimal point can worsen, not increase the focus changes.
The study also used a strangely high dose of Adderall. 30mg of instant release Adderall (equivalent to 60mg of Adderall XR) is actually beyond the recommend prescribing guidelines for ADHD. That's the type of dose that would typically only be prescribed to patients with severe narcolepsy or severe, intractable ADHD. I'm not sure why they thought it was a good idea to give it to medication-naive study subjects.