{"id":"phenoage-acceleration","name":"PhenoAge Acceleration","shortName":"PhenoAge accel.","aliases":["PhenoAgeAccel","Phenotypic Age Acceleration","PhenoAge Acceleration (years)","Age Acceleration (PhenoAge)","Phenotypic Age Advancement","PhenoAge Gap","PhenoAge Delta","PhenoAge Minus Age"],"abbreviations":["PhenoAgeAccel"],"loinc":[],"specimen":"calculated","units":[{"ucum":"a","display":"years"}],"referenceRanges":[],"review":{"status":"ai-verified","label":"AI-verified against cited sources. Awaiting expert review","lastReviewed":"2026-10-03"},"summary":"The gap, in years, between your PhenoAge and your calendar age. Below zero means your blood tests resemble a younger person's; above zero, an older person's.","url":"https://bloodtesttracker.com/markers/phenoage-acceleration","notice":"Information, not medical advice. Ranges differ between labs, so the range on your own report is the one your result is judged against."}