Longevity
Blue Zones Reassessed: What Holds Up and What Does Not
The longevity-hotspot idea rests on birth records that in many regions were never reliable, and the lifestyle findings that survive that problem survive on other evidence entirely.
Latest coverage
Metabolic Health
Continuous Glucose Monitors Without Diabetes: The Evidence
Over-the-counter sensors turned continuous glucose monitoring into a consumer product in 2024. What the readings measure, how far they sit from blood glucose, and what normal variability looks like.
Nutrition
How to Read a Supplement Label: What the Law Requires
US law does not require FDA approval before a supplement is sold, which shifts most of the verification burden onto the label itself and onto the person reading it.
Recovery
Cold Plunge Science: Real Recovery, Real Training Costs
Cold-water immersion reliably lowers muscle soreness, and used straight after lifting it measurably reduces the muscle growth that resistance training is meant to produce.
Longevity
Grip Strength and Healthspan: What the Cohort Data Shows
Grip strength, gait speed, sit-to-stand and VO2max predict mortality more strongly than most consumer health metrics, and prediction is not the same as cause.
Training dose, cardiovascular and strength adaptation, and what the research supports.
Healthspan, biological ageing, and the interventions with evidence behind them.
The weekly digest
The week’s wellness reporting, in one email
Every article we published that week, with the evidence graded and the sources listed. One email each Friday. Unsubscribe any time.
No promotional content. More about the digest.
Glucose regulation, body composition, and the metabolic markers worth tracking.
Protein, micronutrients, supplements, and how to read the evidence behind a label.
Heat, cold, and rest protocols, and the difference between recovery science and ritual.
Browse by topic
- FitnessTraining dose, cardiovascular and strength adaptation, and what the research supports.
- LongevityHealthspan, biological ageing, and the interventions with evidence behind them.
- Metabolic HealthGlucose regulation, body composition, and the metabolic markers worth tracking.
- NutritionProtein, micronutrients, supplements, and how to read the evidence behind a label.
- RecoveryHeat, cold, and rest protocols, and the difference between recovery science and ritual.
- SleepSleep architecture, circadian timing, and what actually improves sleep quality.