Five pillars of the clinical literature on biological aging and inflammation.
Long-form, citation-anchored writing from the Supar Health scientific team - on suPAR, the methylation clock field, chronic inflammation, the evidence base for lifestyle interventions, and the biology of facial aging. Written for clinicians, scientifically literate consumers, and partner practices considering integration of suPAR into their work.
The five pillars
suPAR vs methylation clocks: a clinical comparison.
A rigorous, citation-anchored comparison of suPAR and the major methylation-based biological age tests - Horvath, Hannum, GrimAge, DunedinPACE - across regulatory status, predictive power, reliability, and responsiveness.
Read pillar 01→What is chronic inflammation (inflammaging) and how is it measured?
A clinician-grade primer on chronic low-grade inflammation, the biology behind inflammaging, and what the published literature actually says about how to measure it well - including why the traditional clinical marker (CRP) is limited for tracking chronic state.
Read pillar 02→How biological age tests actually work - and why most are limited.
A technical breakdown of how biological age tests are built, what they actually measure, and which limitations matter most for the people taking them. Written honestly enough that it would hold up before deciding which test to use - including if you decided not to use ours.
Read pillar 03→Lifestyle interventions that lower suPAR: the evidence.
What the published literature actually says about lowering suPAR through lifestyle change - smoking cessation, weight loss, exercise, alcohol, sleep, dietary patterns, stress - organized by effect size, with honest assessment of magnitudes and timeframes.
Read pillar 04→The science of facial aging: what's happening below the skin.
The biology of how systemic inflammation contributes to visible facial aging - and what aesthetic practitioners and patients should understand about measuring the upstream drivers, not just treating the manifestation.
Read pillar 05→What "hazard ratio" actually means.
A hazard ratio is simply how much more likely something is to happen in one group versus another, over time. A hazard ratio of 2 means twice as likely. A hazard ratio of 3 means three times as likely.
When researchers say a biomarker has a hazard ratio of 3 for developing type 2 diabetes, they mean: people with a high level of that biomarker are about three times more likely to develop type 2 diabetes over the following years than people with a low level - even after accounting for age, sex, smoking, and other risk factors.
The higher and more consistent the hazard ratio across different health outcomes, the more powerful the biomarker is at telling you something real about your trajectory.
In published comparisons across cardiovascular disease, type 2 diabetes, chronic kidney disease, cognitive decline, and frailty, suPAR shows the highest morbidity hazard ratios of any biological age test studied. This is the single most important reason we built the platform around it.
Long-form, cited, and willing to be corrected.
Every pillar is reviewed by our scientific team, dated, and rewritten when the underlying literature warrants it. If you are a clinician, researcher, or competitor with feedback on any characterization, we want to hear from you.