Attention is the process of concentrating on a particular object or activity while ignoring other things. It involves focusing one's consciousness. The span of attention refers to how long someone can concentrate on an object before becoming distracted. Several factors can influence attention, including both external factors like size, movement, and intensity as well as internal factors like interests, desires, habits, and past experiences. Distraction occurs when something interferes with one's attention and draws it away from the original object. Common sources of distraction include external noises and stimuli as well as internal states like emotions, fatigue, and lack of motivation.