The foundation that supplements sit on top of
The pyramid framing puts the largest, most evidence-backed drivers of cognitive performance at the base: adequate sleep, a nutrient-sufficient diet, regular physical activity (especially aerobic exercise), and stress management. These are the factors with the strongest and most consistent research support for attention, memory, and mood. They are placed at the bottom because they account for most of the achievable variation in everyday cognition.
Supplements as an amplifier, not a substitute
Supplements occupy the small tip of the pyramid. The core idea is that they can at best amplify a foundation that is already in place; they do not replace sleep, food, movement, or stress regulation. A nootropic taken on top of chronic sleep deprivation is unlikely to recover the lost performance, because the limiting factor is the missing base, not a missing molecule.
This ordering reflects where the evidence is strongest, not a guarantee of results for any individual. This is general educational information, not medical advice. Persistent fatigue, poor sleep, or cognitive problems should be discussed with a qualified professional, since they can have medical causes.