If you study too long at one time, your comprehension diminishes, so plan to take occasional short breaks to rejuvenate yourself. Plan to reward yourself after a major study session so you have something to look forward to. Call a friend, watch television, cook your favorite food, go to a movie, or do something else you enjoy only after you have accomplished your study goals. A key to effectiveness is to separate studying from any other form of activity. You cannot give proper attention to your books and notes if you are watching television, talking on the phone, or day-dreaming at the same time.
Total concentration requires a proper study environment.
It's best to study alone in a quiet place where you are free from interruptions and distractions. Make sure you have all of your materials when you sit down to study. A comfortable chair and proper lighting are essential. Don't get too comfortable, though. Many students have sat down to study, especially late at night, only to wake up with their books and notes in their laps hours later and moments before test time, or sometimes even moments after test time.