Blog
Guides and evidence reviews.
Plain-language explainers on preventive health scanning and longevity clinics, each graded against the underlying research — not provider marketing.
October 11, 2026
DEXA Scan for Body Composition: Accuracy, Cost, How Often, and What Your Numbers Actually Mean (2026)
In one study, weight-stable adults needed a 4.4-point swing in DEXA body fat over three months before anyone could call it a real change. Here's what a DEXA scan measures, how accurate it is, how often to repeat it, and which numbers matter for longevity.
September 26, 2026
Your Full-Body MRI Found Something. Now What? A Finding-by-Finding Guide (2026)
Up to 97% of whole-body MRIs report at least one finding. Most are harmless. Here's what the common ones — kidney cysts, liver spots, thyroid nodules, pancreatic cysts — usually mean, what radiology guidelines say to do next, and who pays.
September 19, 2026
Best Grip Strength Dynamometers for Tracking Longevity (2026)
A Lancet study of nearly 140,000 people found each 5kg drop in grip strength raised mortality risk 16%. Here's the research, age-by-sex norms, and which home dynamometer to buy.
September 19, 2026
GLP-1 Drugs for Longevity: What the Evidence Actually Shows (2026)
A 17,604-person trial found semaglutide cuts heart attacks and strokes by 20% in people without diabetes. Longevity clinics are now selling quarter-doses of it to lean, healthy people as an anti-aging drug — with zero randomized trials behind that specific use. Here's the real evidence, the real risks, and the real costs.
September 5, 2026
VO2 Max Testing for Longevity, Explained: What the Evidence Actually Shows (2026)
Peter Attia calls it the strongest predictor of how long you'll live. Your Apple Watch guesses it with 13% error. And a 2025 genetic study found it might not even be causal. Here's the full picture, with citations.
August 29, 2026
Continuous Glucose Monitors Without Diabetes: What a Brand-New JAMA Review Found (2026)
Stelo and Lingo turned CGMs into a wellness accessory almost overnight. Days before this article, JAMA Internal Medicine published the first major review asking whether any of it works. Here's exactly what it found.
August 21, 2026
10 Best Longevity Clinics in the US (2026): Biograph, Function Health, Cenegenics & More
From a $365/year blood-testing membership to a $100,000-a-year practice with fewer than 75 patients — real 2026 pricing, evidence grading, and the cautionary tale of the well-funded clinic that shut down mid-membership.
August 5, 2026
Peptide Therapy at Longevity Clinics: Is BPC-157 Legal in 2026, and Does the Evidence Hold Up?
The FDA banned BPC-157 from compounding in 2023, reversed course in April 2026, and still hasn't approved it. Here's the actual regulatory timeline and the human evidence — which is thinner than any clinic selling it will tell you.
August 1, 2026
Is an Executive Physical Taxable Income? The IRS Rules Nobody Explains Clearly
Trimble paid $4,641 and $7,740 for two executives' physicals in 2024 — and neither shows up as taxable wages. Here's the exact IRS test that decides whether yours does.
July 24, 2026
Can Preventive Scans or Longevity Clinics Actually Prevent Heart Attacks?
Longevity clinics love to imply their scans catch heart attacks before they happen. One of their flagship tests — full-body MRI — doesn't even look at your heart's arteries. Here's what actually works, evidence-graded.
July 22, 2026
TruDiagnostic vs Elysium vs GlycanAge vs Tally Health: Biological Age Tests Compared (2026)
A top aging researcher tested his own DNA on multiple biological age clocks and got results 27 years apart. Real 2026 pricing and evidence for four leading tests.
July 22, 2026
How to Detect Cancer Early: What Actually Works, by Cancer Type (2026)
"Early detection saves lives" is true for some cancers and false for others. A guideline-graded, cancer-by-cancer guide to what screening actually exists — and what doesn't.
July 20, 2026
The Evidence-Based Longevity Plan for Your 40s (2026): What Actually Matters, Not What's Being Sold
Turning 40 triggers real guideline changes and a well-documented psychological shift that longevity marketing exploits. Here's what's actually worth paying for — with citations.
July 19, 2026
7 Best Executive Health Programs in the US (2026): Mayo, Cleveland Clinic, Cooper Clinic & More
Before Fountain Life and Prenuvo, hospitals invented the executive physical. A JAMA study checked what they actually include against the evidence — here's what it found.
July 19, 2026
6 Best Longevity Clinics in Europe (2026): Clinique La Prairie, Lanserhof, SHA & More
Europe's longevity clinics sell week-long retreats, not annual memberships. Real 2026 pricing for 6 major clinics, plus what the science actually says about 'revitalisation,' fasting, and detox.
July 18, 2026
Fountain Life vs Human Longevity vs Superpower vs Next Health: Longevity Clinics Compared (2026)
Four longevity clinic memberships, four wildly different price tags — $199 to $85,000 a year. An independent, evidence-graded comparison of what each actually includes.
July 16, 2026
TRT Clinics, Explained: What the Evidence on Testosterone Replacement Actually Shows
TRT clinics are booming and the FDA just loosened its rules. Here's what the TRAVERSE trial, a 2026 overprescribing study, and the guidelines actually show — with citations.
July 15, 2026
Multi-Cancer Early Detection Blood Tests, Explained: What Galleri and the 2026 Evidence Actually Show
Galleri, Shield, and Cancerguard promise to catch 50+ cancers from one blood draw. Here's what the NHS-Galleri trial, PATHFINDER data, and new Medicare law actually show — with citations.
July 15, 2026
Prenuvo vs Neko Health vs SimonMed vs Ezra: Full-Body MRI Compared (2026)
An independent, evidence-graded comparison of Prenuvo, Neko Health, SimonMed Longevity, and Ezra — real July 2026 pricing, what's actually included, and what the research shows about full-body screening.
July 14, 2026
Rapamycin for Longevity, Explained: What the Human Evidence Actually Shows
Thousands of healthy adults are taking the transplant drug rapamycin off-label to slow aging. Here's what the mouse data, the PEARL trial, and the safety research actually show — with citations.
July 13, 2026
Preventive Health Scans and Longevity Clinics, Explained: What the Evidence Actually Shows
What preventive health scans and longevity clinics actually do, which ones the evidence supports, and which are still unproven — with citations to the underlying research.