Non-exercise activity thermogenesis (NEAT) refers to the energy expended for activities not considered formal exercise, such as walking, fidgeting, or even standing. NEAT is important because it can significantly contribute to overall daily caloric expenditure, aiding in weight management and obesity prevention. Increasing NEAT can be achieved by making small lifestyle changes, like taking the stairs instead of the elevator or standing while working. These adjustments can promote a more active lifestyle, helping individuals meet their fitness goals without structured workouts, ultimately enhancing overall health.