NPR August 24, 2026 • 08:45

High-intensity sprints can trigger molecular changes in the bloodstream - NPR

By Will Stone

High-intensity sprints can trigger molecular changes in the bloodstream - NPR

A new study finds that an all-out sprint may have unique benefits when it comes to the proteins and tiny molecules in your bloodstream.

We all know a sprint feels different than a longer, take-it-slow kind of workout.
Your heart is pounding. You gasp for air. Maybe your muscles burn.
Now, new research reveals this kind of high-inte… [+4968 chars]

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