High-intensity sprints can trigger molecular changes in the bloodstream

NPR News•Mon, Aug 24, 2026, 08:45 AM•2 min read

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.

Source: [NPR News](https://www.npr.org/2026/08/23/nx-s1-5939943/high-intensity-hiit-heart-health-exercise)

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