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Cerebral atrophy is a common feature of many of the diseases that affect the brain. [1] Atrophy of any tissue means a decrement in the size of the cell, which can be due to progressive loss of cytoplasmic proteins. In brain tissue, atrophy describes a loss of neurons and the connections between them.
The brain is very complex, and is composed of many different areas and types of tissue, or matter. The different functions of different tissues in the brain may be more or less susceptible to age-induced changes. [6] The brain matter can be broadly classified as either grey matter, or white matter.
The part of the brain most affected by Alzheimer's is the hippocampus. Other parts that show atrophy (shrinking) include the temporal and parietal lobes. Although this pattern of brain shrinkage suggests Alzheimer's, it is variable and a brain scan is insufficient for a diagnosis.
Brain volume continues to decrease as we age—including the frontal lobe and hippocampus, the areas responsible for cognitive functions—with the rate of shrinkage increasing by around age 60.
The Health and Retirement Study, which looked at more than two decades of data from over 45,000 older adults in the United States, suggested that lifestyle, genetics and other factors at 60 years ...
Socially isolated participants also had more small areas of damage in the brain, called white matter lesions, than the people with frequent social contac Being lonely linked to brain shrinkage ...
A normal brain on the left and a late-stage Alzheimer's brain on the right. During the final stage, known as the late-stage or severe stage, there is complete dependence on caregivers. [19] [33] [41] Language is reduced to simple phrases or even single words, eventually leading to complete loss of speech.
A new study explores the brain benefits of exercise, and exactly how much exercise can lower your risk of dementia. ... dementia risk was 60 percent lower in participants in the 35 to 69.9 minutes ...