Topic

Fitness & Performance

Training methods, recovery, and performance science.

Showing 1 - 3 of 3 Articles

A bearded man in a hoodie jogs along an empty road under a clear sky.

One number predicts how long you'll live better than your cholesterol. Most people have never measured it.

VO2 max is the fitness score longevity doctors won't stop talking about, and the science backs the hype. What it is, why it matters, and how to actually raise it.

September 22, 2026

A cyclist wearing a VO2 max testing mask

Fitness & Performance

The two cheap tests that predict how long you'll live

Skip the $100,000 workup. Two of the strongest predictors of lifespan cost almost nothing to measure, and you can improve both.

September 21, 2026

A woman drives a weighted sled across a gym floor

Fitness & Performance

Everyone suddenly does Hyrox. Here’s who’s really doing it, and what it costs.

A gym workout with a finish line has quietly become one of the world’s fastest-growing sports. Here is what a Hyrox race is, who is really racing, and what it costs to join them.

September 21, 2026