By Priyanjana Pramanik, MSc. Reviewed by Susha Cheriyedath, M.Sc. Jul 30 2025 New research shows that just 15 minutes of brisk walking a day can make a big difference in life expectancy for low-income and Black Americans, highlighting the power of simple habits to reduce health disparities. Study: Daily walking and mortality in racially and socioeconomically diverse US adults . Image Credit: Oleg Elkov / Shutterstock In a recent article published in the American Journal of Preventive Medicine ,