CHX Journal

Insights for better health.

Evidence-based articles on biomarkers, longevity, and the science of preventative health — written by the ChXhealth team.

2 articles 77 topics
AllanaemiaB12 deficiencybaselinebiomarkersblood sugarblood-testbrain-fogburnoutcadencecardiovascularCholesterolcognitiveCortisolcycledeficiencydiabetesendocrinologyenergyfastingfatigueFerritinfertilityFree PSAFree testosteronefrequencyglp1hair-lossHbA1cHDLheart healthheart-healthhormoneshow-toHPA axisimmune healthinsulinIroniron deficiencyLDLlipid panellow Tmen's healthmenopausemetabolic healthmetabolic-healthmusclenutritionoestradiolover-40perimenopausepre-conceptionprediabetespregnancy-planningprostate cancerprostate healthPSAreference-rangereportsscreeningsleepstresssupplementationtestingTestosteronethyroidtirednesstriglyceridesUK healthveganvegetarianVitamin B12Vitamin Dvitamin-b12weight-gainweight-losswomenwomen's health
Why Hormone Testing Day Matters: Cycle Timing Explainedcycle

Why Hormone Testing Day Matters: Cycle Timing Explained

Female hormones change daily across the cycle. The right day for testing makes results interpretable.

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How Often Should You Retest? Biomarker Testing Cadencecadence

How Often Should You Retest? Biomarker Testing Cadence

Different biomarkers move on different timescales. Learn sensible retesting cadence for each major panel.

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