A lot of drug users are trying self medicate their ADHD or BPD (the most common), or just their sense of existential dread. So at least in the case of ADHD som

A lot of drug users are trying self medicate their ADHD or BPD (the most common), or just their sense of existential dread. So at least in the case of ADHD some amount will be actually treating their condition with the stimulants whether they realize it or not.