METHODOLOGY
HOW STUDIES ARE SELECTED AND CITED
The standard every article on this site is written to, so you can judge the evidence for yourself.
WHERE THE STUDIES COME FROM
Studies are found by searching PubMed, the U.S. National Library of Medicine's index of biomedical research. Articles published since September 2026 end with a Sources list linking each study to its PubMed record, so you can open the original and read it yourself.
Where a meta-analysis, systematic review, or randomized controlled trial exists for the question, that is what gets reported first. Single studies, small trials, and observational cohorts are still reported when they are the best evidence available, and labeled as what they are.
HOW EACH CITATION IS CHECKED
Before a study is cited, its abstract is read against the sentence citing it. Two things are checked: that the PMID points to the right paper on the right topic, and that the paper actually reports the number, direction, and population the sentence describes.
Figures such as sample sizes, effect sizes, confidence intervals, and p-values are taken from the paper, not from secondary summaries.
WHAT GETS REPORTED ALONGSIDE A FINDING
Study design, because an observational study can show an association but not that one thing caused another.
Who was studied. Much of this research was run in young men, clinical patients, or adults in their seventies, and that is stated when it limits how far a finding reaches.
Limits the authors themselves report, including low certainty ratings, high heterogeneity, and outcomes that did not reach statistical significance.
Funding or conflicts of interest, where the paper discloses them.
Findings that disagree. When two good analyses reach different conclusions, both are reported.
WHEN THE EVIDENCE ISN'T THERE
If a search turns up no trial for a question, an article says so: "I could not find a trial that measured this," along with what was searched. It never says "no study exists," because a search that found nothing is not proof that nothing exists.
WHAT THE SITE WILL NOT DO
Articles report what studies measured. They do not issue verdicts, diagnose conditions, interpret your personal test results, or tell you to start, stop, or change a medication.
They do not describe a supplement or practice as a cure, treatment, or way to prevent disease.
Program details in articles, such as sets, hold times, or weekly schedules, are labeled as the book's own programming when they are not drawn from a study.
CORRECTIONS
When a citation or figure is found to be wrong, the article is corrected. In September 2026, every blog post carrying study identifiers was re-checked against the original papers, and the errors found were corrected.
WHO WRITES THIS
Will Power is a Marine veteran, four-time Ironman finisher, and masters athlete with more than 300 races. He is not a physician, dietitian, researcher, healthcare provider, lawyer, or financial advisor. Articles are educational, not individualized medical, financial, or legal advice. Talk with your physician before changing your training, nutrition, supplements, or medications.