Dihexa

Read 1. No explicit male 45–60 self-report was found, and sex was not inferred for the three counted reporters. Long-term use was associated by one user with better memory, procedural learning and idea generation but worse attentiveness, yielding a mixed verdict. A two-week user reported strikingly better chess performance while feeling almost no subjective change, but was concurrently using modafinil and eutropoflavin. A first-day report described mood improvement accompanied by increased agitation/aggression while also taking bupropion and NSI-189. The very small, heavily stacked sample makes both benefit and adverse-effect counts highly unstable.

Read 2. No stated man or age. Nine users from 18 threads: 2 strongly positive (one with 6 months at 5 mg/day, better than 20 years of dextroamphetamine), 1 mixed, 1 no effect, 5 early logs. Side effects: insomnia, tolerance after a year, a "strange experience". High-risk experimental compound acting over weeks to months.

Note 1. Extremely small sample with substantial nootropic/polypharmacy confounding. One seed ResearchCompounds URL returned 404 and was skipped.

Note 2. Several Day 1-3 logs without follow-up. Routes vary widely (oral, sublingual, intranasal, transdermal DMSO).

Each read counted people independently. Overlap between the two reads is estimated from shared threads and removed; counts are approximate. How we count.