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Confirmed
In Short: A new study from Rockefeller University shows that just three minutes of high-intensity exercise can offer greater health benefits than a 90-minute moderate workout.
Scientists at Rockefeller University have discovered that brief bursts of intense exercise, such as sprinting, can dramatically reshape the molecular contents of the bloodstream, offering greater health benefits than longer, moderate workouts.
The study, which compared different intensities of exercise, found that six sets of 30-second sprints altered nearly a quarter of the proteins measured immediately afterward, while moderate exercise altered far fewer.
Researchers also found that human fat cells exposed to blood collected after sprinting underwent extensive changes in gene activity, shifting how the cells process fuel, respond to hormones, and sense nutrient availability.
The findings suggest that brief, intense exercise can trigger a significant molecular response linked to a lower risk of cardiovascular and metabolic disease and slower biological aging, adding to scientists' understanding of how exercise improves health.
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- Scientists say that changes in peoples’ blood are helping to uncover why fitness improves our health Scientists say that changes in peoples’ blood are helping to uncover why fitness improves our health Just three minutes of high-intensity exercise can offer greater benefits for overall health than a moderate-intensity 90-minute workout, a new study suggests.
- “What’s exciting here is that just a few minutes of intense exercise can trigger a significant molecular response,” cardiologist Dr. Paul Cohen, who leads the molecular metabolism lab at New York’s Rockefeller University, said in a statement.
- “We know exercise is associated with beneficial health outcomes,” Cohen told The Washington Post on Wednesday.