The concept of 'cognitive reserve' has gained traction in neuroscience as a potential explanation for individual differences in resilience to age-related cognitive decline. This theory posits that engaging in intellectually stimulating activities throughout life, such as reading complex literature or acquiring new skills, builds a surplus of neural connections. This surplus allows some individuals to maintain normal cognitive function even when faced with brain pathology, such as Alzheimer's disease. Importantly, the reserve is not merely a static trait but a dynamic product of lifelong experiences. Consequently, interventions aimed at enhancing cognitive reserve in midlife may offer a promising, non-pharmacological strategy to delay the onset of dementia symptoms, though the precise mechanisms underlying this protective effect remain an area of active investigation.
❓ Theo đoạn văn, chức năng chính của dự trữ nhận thức là gì?
A. A. Để ngăn chặn hoàn toàn sự phát triển của bệnh Alzheimer.
B. B. Để giúp các cá nhân bù đắp cho tổn thương não và duy trì chức năng hoạt động bình thường.
C. C. Để tăng tốc độ xử lý thần kinh ở người trẻ tuổi.
D. D. Để thay thế nhu cầu điều trị bằng thuốc trong bệnh sa sút trí tuệ.
✅ 正确答案
B. To enable individuals to compensate for brain damage and maintain normal functioning.
IELTS Reading Tips
Skim the questions first, underline keywords, then locate in the passage
Watch for paraphrasing; correct answers are often reworded
Be wary of absolute statements (all, always, never) — usually wrong
Pay attention to content after transition words (however, but, yet)
Manage time: about 20 minutes per passage; skip difficult questions first