aging changes, in the nervous system…

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brain, nervous system, aged nervous tissue, confusion on "getting old", in fact, an illness, nervous system has two divisions, central nervous system consists, the brain, spinal cord, processes nerve messages, controls movement, thought, behavior, peripheral nervous system is made up, the nerves coming to, spine, spinal nerves, nerves, portion, the nervous system carries sensory, movement messages to, central nervous system, physical changes of aging, people age, nerve cell mass is lost, atrophy, the brain, spinal cord, brain weight, decrease significantly, maximum weight of young adulthood, number of nerve cells decreases, each cell has fewer branches, dendrites, nerve cells lose coating, process, demyelinization, changes slow the speed of message transmission, after a nerve carries a message, short time, it must rest, cannot carry another message, the latency period, aging increases the latency period, waste products from atrophied nerve cells, collect, in the brain tissue, causing plaques, tangles, lipofuscin, a fatty brown pigment, accumulate in nervous tissue, not consistent in everyone, have many physical changes in nerves, brain tissue, others have few, have atrophy, plaques, have plaques, tangles, have other changes, certain changes, typical of specific brain disorders, type of physical changes is not always clearly related to changes in brain function, plaques, tangles, alzheimer's disease, the most severe symptoms have fewer plaques, tangles than those, moderate symptoms, effect of physical changes, slight slowing of thought, memory, thinking seems to be a normal part of aging, evidence that continued, moderate physical, mental exercise is helpful in maintaining cognitive abilities, physical aging changes, not clearly related to decreased brain, spinal cord function, changes in memory, thought, cognitive functions, common, in the very old, cannot be directly traced to atrophy, physical brain changes, nerves degenerate, senses affected, reflexes reduced, lost, reflex changes increase problems, mobility, safety, conversely, reflexes that were present at birth, lost, maturity, infantile reflexes the sucking reflex, grasp reflex, reappear, advanced age, a normal change, likely, a sign of a neurological disorder, common nervous system problems, in the elderly, delirium, dementia, severe memory loss, not normal processes of aging, degenerative brain disorders alzheimer's disease, illnesses unrelated, brain, cause significant changes in thinking, behavior, infection, cause an older person to, become severely confused, another common cause of temporary difficulties, thinking, behaviour, dysregulation of glucose, metabolism in patients, diabetes, fluctuations in glucose levels, cause thinking disturbances, significant changes in memory, thought, ability to perform a task, discussed, symptoms occur suddenly, a change in thinking, memory, behavior, considered important, is noticeably different from previous patterns, affects lifestyle, prevention, evidence that continued physical, mental activity helps to keep cognitive abilities thinking, reasoning sharp, reading, doing crossword puzzles, engaging in stimulating conversations, ordinary physical exercise, all help to keep brain, sharp, related topics, aging changes in organs, tissues, cells, aging changes, in the senses.