Case Study: When Kanna Met Amphetamine Salts - What Changed About Focus and Mood

https://johnathanrsnj030.lucialpiazzale.com/when-a-weekend-biohacking-test-turned-into-a-month-long-reaction-time-experiment

When a long-term stimulant user tried kanna: the turning point In early 2023 a 34-year-old software engineer — I'll call her "Maya" — began documenting a self-directed experiment that would change how she thought about mixing supplements