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Research

Where our data comes from.

The research we put into the app is as foundational as the content of this site. Reputable sources are critical for transparency and that's very important to us.

  1. 1. Hupfeld, Abagis & Shah (2019), “Living ‘in the zone’: hyperfocus in adult ADHD”, ADHD Attention Deficit and Hyperactivity Disorders. Springer
  2. 2. Song et al. (2021), “The prevalence of adult attention-deficit hyperactivity disorder: a global systematic review and meta-analysis”, Journal of Global Health: 6.76% symptomatic adult ADHD, 366.33 million adults. PMC
  3. 3. Ayano et al. (2024), meta-analysis of ADHD prevalence: 2.18% by validated research scales against 0.23% by clinical diagnosis. PMC
  4. 4. Rubinstein, Meyer & Evans (2001), “Executive control of cognitive processes in task switching”, Journal of Experimental Psychology; the 40% figure is Meyer's estimate in the APA's summary. APA
  5. 5. DataReportal (2024), global average daily time on mobile internet, 4h 37m. DataReportal

See how these figures appear on the site in The Science section, or read the FAQ.