Anecdote regarding 'smart drugs': The most interesting thing I observed in starting treatment of my ADHD as an adult is that it I think that it stimulated my brain such that I was better able to recognise my tiredness. I remember taking dexamphetamine while I was titrating in the afternoon and pulling over an hour later while driving because I felt I was too tired to safely drive. This was after what I had considered a 'normal' amount of sleep in the past.
When I spoke to people who took these drugs in university (almost all w/o ADHD) sleepiness or calmness never reported by them as a side effect. I avoided coffee and 'energy' drinks in the past because I had this effect, and didn't really understand how people took caffeine to keep themselves awake - I thought it was kind of a meme and I wouldn't understand why my coworkers would drink it during night shifts.
I don't think dehydration adequately explains these to me, as I do take care to try to stay hydrated.
When I spoke to people who took these drugs in university (almost all w/o ADHD) sleepiness or calmness never reported by them as a side effect. I avoided coffee and 'energy' drinks in the past because I had this effect, and didn't really understand how people took caffeine to keep themselves awake - I thought it was kind of a meme and I wouldn't understand why my coworkers would drink it during night shifts.
I don't think dehydration adequately explains these to me, as I do take care to try to stay hydrated.