The One Test That Doesn't Change — Why Your Sweat Data Is Useful Forever

The One Test That Doesn't Change — Why Your Sweat Data Is Useful Forever

The One Test That Doesn't Change — Why Your Sweat Data Is Useful ForeverReece Noble
Published on: 06/04/2026

Unlike VO2 max or lactate threshold, your sweat sodium concentration is fixed. Test once, and the data never expires.

Sweat Testing
What Is a Sweat Test — And Do You Actually Need One?

What Is a Sweat Test — And Do You Actually Need One?

What Is a Sweat Test — And Do You Actually Need One?Reece Noble
Published on: 16/09/2025

What it measures, how the test works, and who genuinely stands to benefit. A clear breakdown with no hype.

Sweat Testing