Ads
related to: brain shrinkage at 60 years
Search results
Results From The WOW.Com Content Network
[6] [7] Regional volume reduction is not uniform; some brain regions shrink at a rate of up to 1% per year, whereas others remain relatively stable until the end of the life-span. [8] The brain is very complex, and is composed of many different areas and types of tissue, or matter.
Structural changes continue during adulthood as brain shrinkage commences after the age of 35, at a rate of 0.2% per year. [4] The rate of decline is accelerated when individuals reach 70 years old. [5] By the age of 90, the human brain will have experienced a 15% loss of its initial peak weight. [6]
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.
Roughly 20% of persons greater than 60 years of age have a neurological disorder, with episodic disorders being the most common, followed by extrapyramidal movement disorders and nerve disorders. [15] Diseases commonly associated with old age include Multiple system atrophy [16] Parkinson's disease [17] Alzheimer's disease [18] Stroke. [19]
The researchers looked at 181 potential risk factors, and then estimated how likely they are to predict dementia and cognitive impairment for people two, four, and 20 years after they turn 60.
A large study in China tracked middle-aged and older adults for 20 years, using regular brain scans, spinal taps and other tests. ... differences in brain shrinkage and cognitive test scores ...