求英语作文memory.三段.what is memory how to improve memory the impr

求英语作文memory.三段.what is memory how to improve memory the improtance of memory

Exercise daily.Regular aerobic exercise improves circulation and efficiency throughout the body,including in the brain,and can help ward off the memory loss that comes with aging.Exercise also makes you more alert and relaxed,and can thereby improve your memory uptake,allowing you to take better mental “pictures."
Reduce stress.Chronic stress,although it does not physically damage the brain,can make remembering much more difficult.After prolonged stress the brain will be damaged.Stressful situations are recognized by the hypothalamus,which in turn signals the pituitary gland.The pituitary gland secreted adrenocorticotropic hormone (ACTH)which influences the adrenal glands to secrete adrenaline and later cortisol(corticosteroids).The corticosteroids can weaken the blood-brain barrier and damage the hippocampus(the memory center).Ironically,the hippocampus controls the secretion of the hormone released by the hypothalamus through a process of negative feedback.After chronic stress it will be damaged and it will not be as efficient in regulating the degenerative corticosteroids and memory will be harmed.Neurogenesis (formation of new neurons) indeed exists in the hippocampus but stress inhibits it.To recapitulate and synthesis,chronic stress will affect your health and your memory,it will damage the brain so the best option is to learn to control stress.Stress will never be eliminated,but it definitely can be controlled.
Rehearse information frequently and “over-learn”.Review what you’ve learned the same day you learn it,and at intervals thereafter.What researchers call “spaced rehearsal” is more effective than “cramming.” If you’re able to “over-learn” information so that recalling it becomes second nature,so much the better.