Sleep. Eat. Exercise.
Eighty-three pages on the few things that change health outcomes, and nothing else. Every claim is traced to a primary source and carries a grade for how good that source is.
A short list, not a long book
You already know the basics. Sleep more, eat better, exercise more. What you do not have is a way to tell which parts of the noise are worth anything: the cold plunges, the peptides, the fasting windows, the shelf of supplements. This book reads the research, keeps the short list of things that change outcomes, and cuts whatever did not survive the evidence.
Why you could believe any of it
Because the method is the credential. Almost every claim is traced to a study, and every study carries a grade. Where the evidence is thin, the book says so. Where a number is a working rule rather than a trial result, the book says that too.
| Grade | What earns it |
|---|---|
| Strong | Meta-analysis or systematic review of randomized trials, large enough to settle the direction. |
| Established | At least one well-conducted randomized trial, or evidence settled enough that the direction is not in dispute. |
| Moderate | Prospective cohorts, or more than one small trial. Most useful lifestyle evidence sits here. |
| Emerging | Cross-sectional or mechanistic work, animal studies, or one small trial on its own. |
| Guideline | A clinical body reviewed the evidence and made a recommendation, and the book says which body. |
| Background | Reading that informs the argument without being a study, so it carries no grade. |
Three pillars, one system
The book treats sleep, food and training as one loop rather than three separate lists, because that is how the evidence behaves. Twelve pathways connect them. Five are established and drawn solid; the other seven are associations and drawn dashed.
A fixed wake time, morning light, caffeine and alcohol timing, and what each stage of the night does.
Protein and plants, the six nutrients that matter, fiber, and the gut as something you feed rather than test.
Strength, an easy aerobic base, a little hard work, balance, and where recovery happens.
Where I sit, and where that might show
I work in wellness, so I sell into the same space this book covers. Read all of it knowing that.
I grade supplement categories on the evidence like everything else, and I grade most of them down, including the ones I work in. Support comes last in the book, is graded hardest, and sits behind a screen designed to talk you out of most of it. Wherever a free basic does the job, the book says to do that instead.
The place my interest is most likely to show is sleep. It goes first and gets as much room as any pillar, partly because of the evidence and partly because it is what I know best.
There will be no ebook
This book will be printed and sold as a printed object. No ebook, no PDF, no app.
That follows from what it argues. The whole book says to fix the foundations before buying anything clever, and it would sit badly to deliver that as one more tab you never go back to. Two of the pages are designed to be torn out and kept, which only works on paper. And a book you can read in an afternoon is a book worth sitting down with.