
Small Bursts, Big Health: 30 Minutes of High-Intensity Exercise Weekly
New research suggests that just 30 minutes per week of high-intensity exercise, ideally split over 2–4 days and reaching roughly 85% of max heart rate, can boost cardiovascular fitness and dramatically lower the risk of lifestyle diseases (40–50%), with additional brain-health benefits; scientists advocate micro workouts and a new Activity Quotient (AQ) metric to better capture exercise intensity and spur public health policy changes.



