The VitalWhys Journal
Articles
Long-form pieces on longevity, training, sleep, and living deliberately. No fluff. Written for people who treat health like it matters.
thyroid
Why TSH Alone Doesn't Tell You If Your Thyroid Is Actually Working
TSH is the thyroid test your doctor orders. It's also the least informative single marker in the thyroid cascade. A normal TSH can coexist with severely impaired thyroid hormone conversion — and every symptom of low thyroid function.
May 4, 2026 · 8 min read
heart health
Why Your LDL Number Is Meaningless Without This Test
Your doctor checks your LDL cholesterol and tells you it looks fine. But LDL-C alone doesn't predict cardiovascular risk — and a 14-year Framingham study proves it. The number you actually need to know requires a different test.
May 4, 2026 · 8 min read
biomarkers
How to Read Your Quest Diagnostics Results for Longevity: A Plain-English Guide
Most people get bloodwork back and look at whether they're in the 'normal' range. Normal and optimal are not the same thing. Here's how to read your Quest results through a longevity lens.
April 30, 2026 · 6 min read
intermittent fasting
Intermittent Fasting and Your Bloodwork: What the 18:6 Protocol Actually Does to Your Biomarkers
Intermittent fasting is one of the most studied dietary interventions of the last decade. Here's what the 18:6 protocol specifically does to fasting glucose, insulin, lipids, inflammation, and other longevity biomarkers — based on the clinical evidence.
April 30, 2026 · 6 min read
cardiovascular health
Why Your LDL Number Is Misleading You (And What to Look at Instead)
Your doctor focuses on LDL cholesterol. But LDL-C is a measure of cholesterol concentration, not particle count — and particle count is what actually drives cardiovascular disease. Here's what to look at instead.
April 30, 2026 · 7 min read