what happens to cells of the brain as the body begins to age? i need a big answer
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Answer:
As we age our brains shrink in volume, particularly in the frontal cortex. As our vasculature ages and our blood pressure rises the possibility of stroke and ischaemia increases and our white matter develops lesions. Memory decline also occurs with ageing and brain activation becomes more bilateral for memory tasks.
The brain continues wiring itself from age 7 to 22. During this stage, essential neural connections form. The prefrontal cortex, the part of the brain that aids in impulse control and decision-making, is fully matured.
The brain is considered at its peak from ages 22 to 27.All cells experience changes with aging. They become larger and are less able to divide and multiply. Among other changes, there is an increase in pigments and fatty substances inside the cell (lipids). Many cells lose their ability to function, or they begin to function abnormally.
The overall volume of the brain begins to shrink when we're in our 30s or 40s, with the rate of shrinkage increasing around age 60. But, the volume loss isn't uniform throughout the brain — some areas shrink more, and faster, than other areas.Your cerebral cortex, the wrinkled outer layer of the brain, gets thinner as you age.
It's especially noticeable in the frontal lobe, which processes memory, emotions, impulse control, problem-solving, social interaction, and motor function.
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