Short HIIT sessions can match longer workouts for heart health, study finds

A new study suggests that brief, high-intensity workouts may deliver cardiovascular benefits comparable to much longer sessions of moderate exercise. Researchers found that high-intensity interval training, or HIIT, lasting about 10 to 15 minutes can improve heart health in ways similar to traditional 45-minute routines.

The findings, published in the Journal of Sports Medicine and reported by Reuters, add to growing evidence that exercise does not always need to take up a large block of time to be effective. For many people, shorter routines may be easier to fit into a busy schedule while still supporting preventive health.

The study focuses on cardiovascular outcomes, an area closely watched by doctors because heart disease remains a leading health risk worldwide. While the results are promising, experts generally caution that exercise plans should still be tailored to individual fitness levels, medical conditions, and long-term consistency.

As interest in time-efficient workouts grows, the research offers another reminder that even modest changes in daily movement can make a meaningful difference. For people struggling to keep up with longer gym sessions, brief intense exercise may provide a practical alternative worth discussing with a health professional.