What causes generalized cerebral volume loss?

Generalized cerebral volume loss, or brain atrophy, can be caused by various factors, including neurodegenerative diseases such as Alzheimer's and Parkinson's, traumatic brain injury, chronic alcohol abuse, and certain infections. Additionally, conditions that affect blood flow to the brain, such as stroke or vascular dementia, can contribute to atrophy. Aging is also a natural factor, as brain volume tends to decrease over time. Other potential causes include metabolic disorders and prolonged exposure to toxins.