High-Intensity Interval Training (HIIT) is a clinically validated health strategy backed by experts like the ACSM. It delivers profound benefits for your heart, metabolism, and brain in just 15-25 minutes. Research shows HIIT can significantly improve cognitive function, preserve brain volume, and provide lasting results for years. Learn the science behind this powerful, time-efficient workout and how you can use it to build a more resilient body and mind.