Final answer:
The sentence 'Giving your brain 'down-time' leads to an increased ability to process information and improves your memory.' is the major supporting detail in the passage, emphasizing the cognitive benefits of silence and reflection.
Step-by-step explanation:
The sentence from the passage that serves as a major supporting detail is 'Giving your brain 'down-time' leads to an increased ability to process information and improves your memory.' This sentence offers a key justification for why seeking silence and allowing for reflection is beneficial, outlining the cognitive advantages such as enhanced processing capabilities and improved memory. These benefits are further bolstered by the context of the passage which discusses the importance of self-reflection, deep thinking, and nurturing creativity. Good study habits and managing distractions are instrumental in promoting metacognition, a critical component of learning and problem-solving. Reflective thought, as mentioned in the passage, is a valuable tool in improving critical thinking skills and promoting personal and intellectual growth.