Field reports from our physicians, deep-dives on biomarkers, and clinical perspective on what longevity medicine actually looks like in practice. Written by the team that builds your programs.
Grip strength, getting up off the floor, balance and VO2 max predict healthspan better than body weight. What each measures and why all can be trained.
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TSH is a good screening test, not the whole story. What free T4 and thyroid antibodies add, the biotin trap, and what else causes constant fatigue.
Men need estradiol for bone, libido and mood. How it rises on TRT, why routine aromatase inhibitors aren't recommended, and how it's best managed.
European labs report testosterone in nmol/L, US charts in ng/dL. Why total T alone misleads, and how SHBG, free T and test timing change the picture.
Women produce testosterone too. Where the evidence for testosterone therapy in women is strong, where it's thin, and how it's prescribed in Europe.
Hormones swing week to week in perimenopause, so a single test often looks normal. When blood tests help, when they don't, and what to ask instead.
Lp(a) is a genetic heart-risk marker that diet barely moves. Why one test is usually enough, and what a high result changes.
LDL cholesterol counts cholesterol. ApoB counts the particles that cause plaque. When the two disagree, and why ApoB sharpens heart-risk assessment.
Hard training changes creatinine, liver enzymes and CK. How exercise skews bloodwork, and which markers matter most for people who train.
Epigenetic clocks, blood-based models and more: what biological age scores measure, what a good one can tell you, and what it can't.