Do You Really Need A Sweat Test For Your Marathon?

How much you drink changes how useful that sodium number is.

I Still Run Fasted. I Just Stopped Programming It.

The muscle adapts. The stopwatch mostly doesn't. Here's what I do instead.

Heat Is Not Altitude. So Why Are Runners Using Both?

What short heat blocks do, what longer exposure may change, and when altitude is worth the cost.

Running Loads Your Bones. It May Not Be Enough.

Why challenging lifting, impact work, and a longer timeline belong in a runner's bone plan.

A Sub-2 Marathon Made Lactate Gels Famous. The Evidence Is Still Thin.

Lactate is fuel. That does not mean drinking more of it makes you faster.

90% of Your Runs Don’t Need Electrolytes

Use sodium when fluid replacement gets high, not every time you lace up.

The Marathon Test That Predicts Your PR Better Than VO2max

Stop chasing noisy lab numbers. Use the repeatable block test instead.

You Can't Fuel Your Way Out of a Mile 20 Bonk

Most Runners Pick the Wrong Gel for the Wrong Reason