Tests

A low testosterone value is not a diagnosis. Learn what the lab actually measures, the three symptoms that genuinely correlate with it, and what a proper clinical evaluation looks like.

A practical guide to seven skin signs of high insulin, the lab tests to request, and the diet changes that can improve skin health.

A clear summary of the rapamycin trial in adults over 65, covering dose, safety, biomarkers, frailty endpoints, and functional health goals.

Why the testosterone crisis narrative is overstated, how lab methods distort trends, and how to evaluate symptoms with repeat testing and context.

Fertility, cycles and AMH can reveal hormone and metabolic health early. Learn what to test, when to act and how lifestyle shapes ovarian aging.

Evidence shows that lifting, bone density screening and early action can lower fracture risk and protect strength, mobility and independence with age.

The NBA point guard explains how diet changes, lab data, and lower stress improved recovery, gut health, and long term performance.

Gut health improves with more plants, fiber, fermented foods, and less obsession with isolated calories or glucose spikes out of context.

The idea of overtraining is often misused. This guide explains what the evidence shows, when to reduce load, and when to look for a medical cause.

We review what Galleri detects, why the NHS trial missed its main endpoint, and when it may still make sense as a complementary test.

Your waist tells you more than the scale about visceral fat. Here is how to measure it well and reduce it with exercise, protein, and sleep.

Real heart risk depends more on ApoB, inflammation, and insulin resistance than on looking at LDL alone in a standard lipid panel.

Elevated ALT, AST, or GGT after training does not always mean liver damage. Exercise context can completely change how a lab panel should be read.

Coronary CTA can reveal soft plaque before calcium scoring or stress tests show disease, making earlier and more targeted treatment possible.

What tests like Galleri actually promise, why stage 1 sensitivity is still low, and when they may deserve a limited supporting role.