Physician Daniel Amen presented the results of tests administered to Steven Bartlett, including an attention test (Conners CPT) and functional perfusion imaging. According to his analysis, the combination of history, test performance, and observed patterns is consistent with ADHD, a subtype he describes as "overfocused," although the imaging alone does not constitute an independent diagnosis.
Amen pointed to areas with relatively lower activity—including the left prefrontal cortex—which he linked to difficulties with inhibition and organization, and mentioned the possibility of cumulative impact from minor traumas in childhood and adolescence (for example, head collisions while playing soccer). He indicated that environmental factors such as mold or heavy metals could also contribute and suggested confirming them with specific tests.
Regarding habits that harm brain health, he highlighted the high consumption of free sugars and sugary drinks, sleep deprivation, alcohol and cannabis use, and excessive screen time. He stated that as body weight increases, brain size and function decrease, and warned that constant exposure to digital rewards can "wear down" the pleasure and motivation centers.
Among lifestyle interventions, he recommended regular exercise and a diet that promotes cerebral blood flow (he mentioned spices and vegetables like beets), as well as an adequate intake of omega-3 fatty acids. For certain cases, he cited the use of ginkgo extract and, under medical supervision, hyperbaric oxygen therapy, with the goal of improving cerebral perfusion and energy.
Regarding sleep, he explained the role of the glymphatic system, which facilitates the "cleanup" of metabolic byproducts during the night. He noted that disorders such as sleep apnea are associated with patterns of reduced brain activity in parietal areas and a higher risk of cognitive decline if not treated properly.
In mental health, he proposed addressing the causes ("why") before the symptoms ("what"), considering hormones, infections, nutritional deficiencies (such as vitamin D), and life events. For managing negative thoughts, he described an exercise of systematically recording and questioning "automatic thoughts" in order to reduce their behavioral impact.
Regarding ADHD in adults, he suggested a step-by-step approach: lifestyle optimization, psychoeducational support, and, if appropriate, individualized pharmacological treatment, emphasizing that medication should not be the first or only measure. He noted interindividual variability: some people use them occasionally for tasks requiring prolonged concentration, while others prioritize non-pharmacological interventions.
In the area of addictions and cultural habits, he advised against alcohol consumption due to its association with decreased perfusion and white matter alterations, even with moderate intakes. He also linked loneliness and isolation with worse brain outcomes, and therefore recommended strengthening social connection as part of a health plan.
Finally, he emphasized that "you are not condemned to the brain you have": function can improve with sustained interventions and measurement of markers such as sleep and heart rate variability. He reiterated that the goal is to "optimize the brain" to positively impact mood, behavior, and overall performance, rather than labeling people with diagnoses.
Sources cited: 1) The Diary of a CEO (YouTube): https://www.youtube.com/watch?v=ycTZ_t-aiuU