How Long to Rest After a Marathon? A Week Off, Then a Week Easy

Running Doesn't Stiffen Your Achilles. Heavy Calf Holds Do.

Losing Fat as a Runner? Carbs Aren't What I'd Cut First.

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.