The concept of 'cognitive load' refers to the total amount of mental effort being used in the working memory. In educational psychology, cognitive load theory suggests that learning is most effective when instructional materials are designed to minimize extraneous cognitive load, allowing learners to focus on essential information. However, recent studies have challenged the universality of this theory, arguing that the optimal level of cognitive load may vary depending on individual differences such as prior knowledge and learning style. For instance, novice learners often benefit from simplified materials, while experts may require more complex tasks to engage deeper processing. Thus, a one-size-fits-all approach to instructional design may be insufficient, and educators should consider adaptive strategies that cater to diverse learner profiles.