Liver Enzymes for Lifters: Why ALT and AST Mislead
Quick Summary ALT and AST are both present in skeletal muscle. Heavy resistance training, especially eccentric work, raises them substantially in people with entirely normal livers. Pettersson and colleagues showed that a single bout of heavy weight training can push these enzymes into ranges that look like hepatitis, and keep them there for a week […]
Hematocrit on Testosterone: Erythrocytosis Explained
Quick Summary Testosterone reliably raises red cell mass, primarily by suppressing hepcidin and increasing iron availability for erythropoiesis, with a secondary rise in erythropoietin sensitivity. Erythrocytosis is the most common dose-limiting effect of testosterone therapy, and it is far more frequent with injectable preparations than with transdermal ones. The link between treatment-induced erythrocytosis and thrombotic […]
Coronary Artery Calcium Score: Imaging Beats Guessing
Quick Summary A CAC scan is a short, non-contrast CT that quantifies calcified plaque in the coronary arteries and returns a single Agatston score. It measures disease that already exists rather than estimating the probability that disease might develop, which is why it reclassifies risk so effectively. A score of zero in an asymptomatic person […]
Lipoprotein(a): The Inherited Risk You Test Once
Quick Summary Lipoprotein(a) is an LDL-like particle with an extra apolipoprotein(a) tail. Its concentration is roughly 80 to 90 percent genetically determined and stays broadly stable across adult life. It is causally associated with atherosclerotic cardiovascular disease and with calcific aortic valve stenosis in Mendelian randomisation and large cohort data. Roughly one in five people […]
ApoB vs LDL Cholesterol: The Number That Predicts Risk
Quick Summary Every atherogenic lipoprotein particle carries exactly one apolipoprotein B molecule, so ApoB is a direct count of the particles capable of entering and damaging the artery wall. LDL cholesterol measures the cholesterol cargo inside those particles, not how many particles there are. The two usually agree, and when they disagree the particle count […]
Cystatin C vs Creatinine: Kidney Tests and Muscle Mass
Quick Summary Serum creatinine is a breakdown product of muscle. The more muscle you carry, the higher your creatinine runs at any given true filtration rate. That means creatinine-based eGFR systematically underestimates kidney function in heavily muscled people, and can produce a chronic kidney disease label in someone with normal kidneys. Cystatin C is produced […]
Biohackers Unite Online to Combat Coronavirus Pandemic
When the coronavirus pandemic swept across the globe in early 2020, the biohacking community demonstrated what self-directed health optimization is truly about. As reported by The Guardian in March 2020, biohackers worldwide began collaborating online to develop innovative solutions to combat the virus—a movement that exemplifies the same pioneering spirit that Tony Huge has championed […]
Super-Rich Biohackers: Tim Gurner & Elite Longevity Protocols
The world of biohacking has evolved from a fringe movement into a billion-dollar industry embraced by the ultra-wealthy, with Australian property mogul Tim Gurner becoming the latest high-profile figure to publicly discuss his extensive anti-aging regimen. According to recent reports from The Guardian, Gurner and a growing cohort of super-rich “grinders” are investing astronomical sums […]
Common Supplement Reverses Aging in Groundbreaking Study
In a development that has captured the attention of the biohacking and longevity optimization community, researchers have documented the first successful reversal of premature aging in humans using a widely available supplement. The landmark clinical trial, recently reported by ScienceDaily, represents a significant milestone in the quest for age-reversal interventions that Tony Huge and the […]
UBX1325: The Senolytic That Nearly Proved It
UBX1325 (Foselutoclax): The Senolytic That Got Closest to Proving It — and What It Still Didn’t Prove Quick Summary UBX1325 (foselutoclax) is an investigational small-molecule BCL-xL inhibitor injected directly into the eye. It kills senescent cells by blocking the survival protein they lean on. It was tested against a real drug in a real head-to-head […]