What is Brain Atrophy?
Brain atrophy is a degenerative disease caused by various reasons leading to damage of brain tissue, reduction of brain cells, and shrinking of brain volume. Pathologically, it manifests as reduced brain gyri, widened brain sulci, enlarged ventricles, and decreased brain weight.
Brain atrophy is commonly divided into two types: physiological and pathological.
Physiological brain atrophy is a natural decline in bodily functions with age. Many healthy elderly individuals also experience varying degrees of physiological brain atrophy, but it is often mild and does not affect normal life. Statistics show that after the age of 60, the brain volume decreases by 0.5% to 1% annually.
