Blood TestingMay 7, 2026
Most annual physicals include a basic metabolic panel and a complete blood count. These tests cover electrolytes, kidney function, liver enzymes, and blood cell counts. They are useful for detecting acute illness and organ dysfunction. But they tell you almost nothing about cardiovascular risk, metabolic health, thyroid function, inflammation, or vitamin status. For anyone who wants to catch problems early, rather than after symptoms develop, standard panels leave too much unmeasured.
Cancer ScreeningMay 7, 2026
The Galleri test screens for signals from over 50 types of cancer using a single blood draw. It works by analyzing cell-free DNA methylation patterns, and the clinical data behind it is both genuinely promising and genuinely limited. The CCGA validation study showed 99.5% specificity and the ability to predict where a cancer signal originates with 88.7% accuracy. But sensitivity for Stage I cancers was just 16.8%, meaning the test misses most cancers at their earliest, most treatable point. If you're considering spending $849 on this test, you deserve a clear picture of what the science actually shows.
LongevityMay 6, 2026
Your birth certificate says one thing. Your cells might say something different. Biological age tests analyze chemical tags on your DNA to estimate how quickly your body is aging relative to your chronological age. The field has evolved rapidly since the first epigenetic clocks were published in 2013, and the latest generation of tests can now predict disease risk and mortality with surprising accuracy. But the science is more nuanced than most longevity podcasts suggest, and understanding what these tests can and cannot tell you matters before you order one.
Allergy TestingMay 5, 2026
Roughly 10.8% of U.S. adults have a clinically convincing food allergy, yet nearly 19% believe they do. That gap between real and perceived food allergy drives a massive market of unvalidated tests, unnecessary dietary restrictions, and persistent confusion about what food allergy testing actually tells you. The clinical reality is straightforward: true food allergies involve immunoglobulin E (IgE), and the tests that matter measure IgE. Everything else requires scrutiny.
Sleep HealthApr 28, 2026
An estimated 936 million adults worldwide have obstructive sleep apnea, and the vast majority don't know it. For decades, diagnosis required an overnight stay in a hospital sleep lab, hooked up to dozens of electrodes. That's changed. FDA-cleared home sleep apnea tests now let you get a clinical-grade diagnosis from your own bed, at a fraction of the cost. The research backing these devices is substantial, and for most adults with suspected moderate-to-severe obstructive sleep apnea, the American Academy of Sleep Medicine considers home testing a validated alternative to in-lab polysomnography.
