HIIT may boost heart health after stroke, new trial shows

This study tests whether high-intensity interval training (HIIT) on a stationary bike can improve heart rate variability—a key sign of recovery—in people who recently had a stroke. Fifty patients within three months of their first stroke will either do HIIT or low-intensity group exercises for six weeks. Researchers hope HIIT can become a standard part of stroke rehab to help patients regain heart and nervous system function.