Psychological effort refers to the mental energy and focus we invest in tasks or challenges. It involves our ability to concentrate, make decisions, and solve problems. When we engage in activities that require deep thinking, like studying for an exam or completing a complex project, we are exerting psychological effort. This effort can be influenced by factors such as motivation, stress, and fatigue. When we experience high levels of psychological effort, we may feel mentally drained or fatigued. This is because our brain is working hard to process information and manage emotions. Understanding psychological effort can help us find ways to improve our focus and productivity, making tasks like learning or working more manageable and enjoyable.