KNOWLEDGE
Physician-authored explanations of the biomarkers, tests, and ideas that shape modern preventive medicine — written to be rigorous, not dumbed down.
8 min
A bone density scan grades your bones — but most fractures happen above the osteoporosis threshold. How to read the T-score, and what lowers fracture risk.
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Age-based blood pressure charts mislead. Learn the real home and clinic thresholds, a 7-day measurement protocol, and how your target follows total risk.
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A raised PSA test is a finding, not a diagnosis. What lifts the number, why the first value rarely decides, and why MRI should come before biopsy.
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Muscle pain on a statin is real — but blinded trials show the drug is often not the cause. How to test it properly, and what to do if intolerance is genuine.
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The 2002 WHI headline still shapes the advice women get. What menopause hormone therapy treats, what it does not, and when timing makes you a candidate.
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A coronary calcium score settles one decision: whether to start lipid-lowering therapy. What zero really means, what a high score changes, and who can skip it.
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Mild fatty liver on an ultrasound is a metabolic finding, not a liver verdict. FIB-4, from labs already in your file, shows whether fibrosis is the real risk.
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Ozempic, Wegovy and Mounjaro change far more than weight. What to measure before the first injection, what to track after, and the exit question nobody asks.
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The Israeli executive checkup is thorough at answering one question: is there disease now. Here is the second question it was never designed to ask.
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Thirty normal rows is not a comprehensive blood panel. Which markers yours omits, what changes clinically when they are abnormal, and what is wasted.
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A decade-by-decade guide to screening tests by age in Israel: which ones actually change outcomes, what the health funds already cover, and when to stop.
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A whole-body MRI sees the tumours no screening programme looks for — and misses the cancers most likely to harm you. How to decide, in the Israeli context.
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Epigenetic clocks, glycans and proteomics promise a biological age in one number. What the evidence supports, what it does not, and what to measure instead.
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Atherosclerosis begins decades before symptoms, and stress tests only detect late disease. What carotid ultrasound shows, how it compares to coronary calcium, and what changes when plaque is found.
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One adult in five carries an elevated Lp(a). It is set by genetics, stable for life, absent from every standard lipid panel — and it explains a great deal of premature heart disease.
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A fasting glucose is one number from a state you never live in. Fourteen days of continuous data show the post-meal physiology that fails years before HbA1c moves — and where hype outruns evidence.
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Two people can share the same BMI and weight while only one is metabolically healthy. What visceral fat does to the liver — and why body composition, not the scale, is the measurement that matters.
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A hand dynamometer predicts mortality better than blood pressure does. What grip strength, muscle power, and balance reveal about how you will age — and the training that reliably changes them.
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Obstructive sleep apnea is common, consequential, and mostly undiagnosed — and it is not only a disease of snoring, overweight men. What screening actually finds, and which treatments hold up.
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Carrying APOE e4 raises Alzheimer risk substantially but does not determine it. What the alleles mean, whether to test at all, and the large share of dementia risk that is genuinely modifiable.
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Inherited variation in a few enzymes and transporters decides whether clopidogrel works, whether a statin causes muscle pain, and whether codeine is dangerous — and what a panel cannot tell you.
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Stage at diagnosis decides most cancer outcomes. Which screening actually reduces deaths, what multi-cancer blood tests and whole-body MRI can and cannot do, and why survival statistics mislead.
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LDL-C is the number on most lab reports. ApoB is the number that actually predicts risk. Here is why the distinction matters — and what your ApoB reveals about your arterial health.
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Cardiorespiratory fitness predicts all-cause mortality better than smoking, diabetes, or hypertension. What the data shows — and how to train the most responsive longevity biomarker we have.
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HbA1c can look normal while metabolic dysfunction is already underway. Fasting insulin is the earlier, more sensitive signal — and it is almost never on a standard lab panel.
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Few tests are misread as often as a hormone panel. Why low testosterone is usually a symptom of something else, when a borderline TSH warrants treating, and what a reference range never tells you.
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