To remain focused during lengthy study sessions, candidates can employ techniques such as the Pomodoro Technique, which involves studying for 25 minutes followed by a 5-minute break. Setting specific goals for each study session can also create a sense of purpose. Maintaining a designated study environment free from distractions minimizes interruptions. Regular short breaks, exercising, and hydration can rejuvenate the mind. Additionally, using methods such as active recall and spaced repetition maintains concentration while effectively processing and retaining information.