How do I stay focused while studying for long periods?

The most effective approach is to use structured work intervals like the Pomodoro technique: study for 25-50 minutes, then take a genuine 5-10 minute break where you step away from your desk. This prevents mental fatigue from compounding. Beyond that, eliminate your biggest distractions before you start, not during. Put your phone in another room, use a site blocker, and tell people around you not to interrupt. Study in a consistent location dedicated to work so your brain associates that space with focus. Staying hydrated, avoiding heavy meals beforehand, and getting enough sleep the night before matter more than most people realize. Starting with your hardest material when your energy is highest also makes a significant difference.