Founder, VitalDecades
90 guides published
Mario Bailey founded VitalDecades and answers for every guide on it. He is a software engineer with more than a decade of experience building secure, reliable systems, and a U.S. Air Force veteran. He runs the site's data pipelines and its source checks: each number is read against the guideline, label or public record that sets it, and that source's date is printed beside it.
He is not a clinician, and no named clinician reviews this site yet. How pages are checked sets out what the checks cover and what they do not.
Blood pressure numbers are easy to look up and hard to act on, because the category a reading …
"Best exercise to prevent osteoporosis" is a question about broken bones, but almost all the trial evidence is …
The TSH reference interval is the most quietly contested number in routine blood work. There is a standard …
Lipoprotein(a) is the cardiovascular risk factor most people have never had measured. It is largely fixed by the …
HDL is the one number on a lipid panel where higher has always sounded better, and where the …
Ferritin is the test where the reference range on your report is least likely to answer your question. …
Search "normal PSA levels by age" and you get a chart: 2.5 ng/mL in your 40s, 3.5 in …
Two things are true about eGFR and age, and reading only one of them is how people end …
Search "cholesterol levels by age" and most results show a chart with a decade in every row. The …
In January 2026 the US Dietary Guidelines told adults to eat 1.2 to 1.6 grams of protein per …
Magnesium is sold for sleep, anxiety, cramps, migraine, blood pressure and blood sugar. It has decent evidence for …
Almost every intermittent fasting trial that shows weight loss also shows people eating less. The interesting question is …
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