Why We Start With the Body

Here's the cleanest way to see it: take the three abilities ADHD already runs short on, holding things in mind, stopping yourself, switching gears, and just underslept a person. Across decades of studies, sleep loss degrades exactly those three: working memory, inhibitory control, and cognitive flexibility, at medium-to-near-large magnitudes. Read that again, because it's the whole argument for this module: short sleep hits the precise functions your brain is already light on. You can build the best reminder system on earth, but if the substrate is degraded, everything you stack on it underperforms. So we don't start with the body because it's wholesome. We start here because it's the base layer, the thing that decides how much capacity every later module gets to work with. And the move is the course's move: you're not going to try harder to focus. You're going to change the physical inputs, sleep, light, movement, fuel, that set your baseline before effort even enters the picture.