Circadian rhythm is our bodies’ system that internally monitors and regulates sleep and waking hours in a 24 hour period.[35] Sleeping a consistent number of hours will reduce feelings of drowsiness throughout the day, especially due to the large amount of sleep necessary for students.[36] Going to sleep at a consistent time can also be just as important as sleeping the same number of hours each night.[37] Students with consistent sleeping schedules had better grades on average than students with irregular sleep schedules according to a study conducted by Brigham and Women’s Hospital.[37] Schedule changes may impact circadian rhythm, and will take time for your body to adjust to.[37]