1. If a student has only 10 minutes before an exam, the most effective exercise is short, moderate-intensity physical activity, such as brisk walking, light jogging, or simple aerobic movements. It can immediately increase alertness, improve concentration, reduce stress, and prepare the brain for learning.2. Schools can integrate physical activity without sacrificing learning time by using short activity breaks of 5–10 minutes between lessons, encouraging walking or active games during breaks, and including movement in classroom activities. This keeps students active while maintaining the required academic time.