This article is pretty poorly written. First off, methylphenidate is a phenethylamine - not an amphetamine. Its chemical structure doesn't resemble amphetamine. Secondly, Adderall is not simply dextroamphetamine, it is a racemic mixture of both amphetamine salts. There have been studies showing that amphetamine leads to definitive cognitive improvement in the general population. Why restrict it? Human beings have a s…
Stimulants cause people to become psychotic. Some are more vulnerable to this effect than others.
https://en.wikipedia.org/wiki/Substance-induced_psychosis#Su...
There are better, safer ways to cause a "cognitive improvement in the general population".