We Can Challenge Our Brains Or Our Bodies, But Not Both, Says Study

Have you ever sat down to work on a crossword puzzle only to find that afterwards you haven't the energy to exercise? Or have you come home from a rough day at the office with no energy to go for a run? A new study, published in Psychology and Health, reveals that if you use your willpower to do one task, it depletes you of the willpower to do an entirely different task.