Brain aging refers to the natural process of cognitive decline and physiological changes that occur in the brain as a person ages. This process can affect various aspects of brain function and structure, including memory, learning, and decision-making abilities. As individuals grow older, there may be a gradual reduction in the volume of certain brain regions, changes in the way neurons communicate, and alterations in neurotransmitter levels.
Brain aging is often accompanied by increased risks of neurodegenerative diseases, such as Alzheimer’s disease and dementia, which can further impair cognitive functions. It is influenced by a combination of genetic, environmental, and lifestyle factors, including diet, physical activity, mental stimulation, and social engagement. While some degree of cognitive decline is considered a normal part of aging, there is significant variability among individuals. Research in neuroscience aims to better understand the mechanisms behind brain aging and identify interventions that can promote healthy cognitive aging and reduce the risk of age-related neurological disorders.
Age-related cognitive decline starts subtly in our 30s, with brain shrinkage occurring over time. Common signs of aging include forgetfulness, wavering concentration, and changing emotional responses. By age 80, brain…