当前位置:文档之家› 睡眠决定寿命 每天睡几个小时可长寿(Sleep determines life and sleeps

睡眠决定寿命 每天睡几个小时可长寿(Sleep determines life and sleeps

睡眠决定寿命 每天睡几个小时可长寿(Sleep determines life and sleeps
睡眠决定寿命 每天睡几个小时可长寿(Sleep determines life and sleeps

睡眠决定寿命每天睡几个小时可长寿(Sleep determines life and sleeps a few hours a day for long life)

Sleep determines life and sleeps a few hours a day for long life

One day must be 8 hours of sleep? According to the American Cancer Society, the average person who sleeps 7~8 hours per night has the longest life expectancy; 80% of people who sleep less than 4 hours a night are short lived. But Guo Xiheng, director of the center for respiratory diseases diagnosis and treatment at Beijing Chaoyang Hospital, also pointed out that the best sleeping time for different age groups is different, and should be scientifically sleep according to their age.

Sleep determines life (picture: Oriental IC)

People over 60: sleep 5.5~7 hours every day

The old should go to bed at 12 every night, and sleep at night for 7 hours, or even 5.5 hours. Alzheimer's association data show that people who sleep within 7 hours of sleep each night can age their brain for 2 years. Long term sleep more than 7 hours or lack of sleep will lead to poor attention, even Alzheimer's disease, increased risk of early death.

Recommendation: the most common sleep problems in the elderly are dreaming and insomnia. Dreaming is due to the deterioration of the brain function of the elderly. Insomnia is caused by the decrease of melatonin secretion in vivo, and melatonin is one of the important factors that determine sleep in vivo. Guo Xiheng suggested that night sleep quality is bad for the elderly,

it is best to develop a lunch break, the time does not exceed 1 hours. Otherwise, the brain central nerve will be more inhibited, causing the brain blood flow is relatively reduced, the body metabolism slowed down, easily lead to wake up uncomfortable, or even more sleepy.

30~60 year old adult: sleeps 7 hours every day or so

Adult men need 6.49 hours of sleep, women need about 7.5 hours, and should ensure that 10 in the evening to 5 in the morning, "high quality sleep time."". Because at this time people reach the state of deep sleep, helps relieve fatigue. The 22 year study in Finland in a study of 21 thousand adults found that sleep less than 7 hours for men, the risk of death was 26% higher than sleep 7~8 hours of male, female 21% higher; sleep more than 8 hours of men, the risk of death was 24% higher than sleep 7~8 hours of male, female 17% higher.

Recommendation: if the person of this age group lacks sleep, it is related to bad habits such as mental deterioration or overeating caused by stress. Guo Xiheng reminds, besides relieving the pressure as far as possible, but also can do something in the sleeping environment, such as reducing noise, ventilation, proper shading, etc., and choose 10~15 cm high, soft and moderate pillows. People who still don't sleep enough can sleep through 1 hours of lunch break. 13~29 year olds: sleep for about 8 hours every day

Teenagers of this age usually need to sleep 8 hours a day, and follow the principle of early to bed and early to rise, and ensure deep sleep at about 3 in the evening. You should usually

go to bed at 24, get up at 6, and try not to sleep late on weekends. Because the sleep time is too long, will disrupt the body clock, resulting in lack of energy, the impact of memory, and will miss the breakfast, caused by eating disorders.

Recommendations: young people are accustomed to staying up late, which will directly affect their mental state for second days, and easy to damage the skin, acne, acne, chloasma and other issues. Long stay up late will affect the endocrine, leading to decreased immunity, colds, gastrointestinal infections, allergies and so on will find the door,

There will be forgetfulness, irritability, anxiety and other mental symptoms. Therefore, the most important thing for young people is to regulate their own lives. Do not eat 1 hours before going to sleep, and take half an hour's nap at noon, which is more beneficial to your health.

4~12 year old child: sleeps 10~12 hours every day

It is necessary for children 4~10 years of age to sleep 12 hours a day, go to bed at about 8 every night, and take a nap at noon as soon as possible. Older children sleep 10 hours, or even 8 hours, enough. Capital Institute of Pediatrics, deputy director of department physician Li Haiying told reporters that if the children lack of sleep will not only Jingshenbuzhen, low immunity, but also affect the growth and development. But she warned that sleeping time should not be too long, if more than 12 hours, may lead to obesity.

Recommendation: children do not have sleep disorders at all,

as long as a good environment is available. Don't eat before going to bed, the bedroom not too bright lights or more exciting music; best together with the children a timetable, urging them to sleep before going to bed; let the child do some preparatory work, such as brushing teeth, wash bed, etc., this process may seem simple, but in the child that go to sleep". 1~3 year olds: 12 hours per night, two or three hours during the day

The child should sleep 12 hours a night and two or three hours a day during the day. Specific sleep times can be determined according to their own sleep rhythms, such as some babies getting used to sleeping at noon and later in the afternoon.

Suggestion: the baby of this age is easy to sleep because of too much excitement. Sometimes, they got to sleep, the brain is still active; asleep, often being kicked, molar, bedwetting. These can affect the baby's brain and body development. Therefore, parents are advised to take a warm bath for 1 hours before the baby's bedtime, relax the whole body, tell a little story or put on some relaxing and soothing music, and also help to sleep.

Infants under 1 years of age: 16 hours per day

Babies under 1 have the most sleep, about 16 hours a day. Sleep is an important period of growth and development of infants aged within 8 months so sleep time must be guaranteed.

Recommendation: most of the baby's sleep problems are caused by calcium deficiency, daytime fright and digestive disorders. Some children sleep too much at night because they sleep too

much during the day. In this regard, parents should pay attention to the children, scientific feeding; also need to try to ensure the baby sleep at night is not complete, frequent nocturnal feeding or changing diapers, especially after midnight, because few month old baby in the secretion of hormone in the fastest after midnight.

Which type of blood group determines longevity, and which type of blood group has the longest life span?

Until now, there is no evidence that the United States has used the knowledge of blood type psychology in conscription to select people who are suitable for leadership. It is said that this method has long been introduced in japan. In any case, the research continued, supplemented and calculated, and drew exciting but surprising conclusions.

Which blood group has the longest longevity?

Type O blood has the longest longevity

The mathematician and Dr. Stephen.M. Weiss Berg (StevenM.Weissberg) with the well-known fitness expert Joseph Christiano (JosephChristiano) in the survey of 5000 people in the interesting data.

One question is, is there a difference in the average life expectancy of people with different blood types?

The average life span of Americans is 76. This number is predestined. And it's delightful, because only a few people

live longer obviously, and the others die long ago.

The person with the longest life expectancy is O type, whose average life expectancy is almost 87 years. They are nightmares of pension agencies. The plateau of life is not surprising because these people are physically strong, strong willed, psychologically balanced, and carefree.

People with type B blood remain calm even if they die 10 years earlier than the type O blood. They are stubborn and cling to everything.

Life expectancy is 10 years less, people with type AB blood are up to 70 years old.

The average person who lived the shortest type of A was only 62 years old! In the psychologist's view, this is expected, because people with type A blood are thin and very sensitive, and they will always worry about themselves and their people. Unfortunately, this tends to overload the heart and even cause wastage.

Which blood group has the longest longevity?

But people with type A blood have shorter life expectancy than other blood types, and there is a very different reason. Dr Pete and.J., a doctor of medicine and a natural therapist, discovered the antagonism between certain foods and blood types. In one of his books he described the problem of matching people with food, because eating habits were influenced by blood type.

He believes that the main difference between O blood type and blood type A person is the meat food digest: people with type O blood and need carnivorous, is well absorbed; while people with blood type A can be a good digestion of meat, cereals and vegetables need relatively more food. The basic reason is that there is a difference in the amount of gastric acid secretion: people with type O blood have enough stomach acid, so digesting meat is a piece of cake. Unfortunately, almost all of our recipes today are meat fast food: kebabs, hamburgers, roast sausages and steaks, which are just like poison to A blood people and their fragile digestive system. The wrong diet to make these people weakened, and shorten the service life.

Let's take a look at the situation in japan. The country's A blood type has the longest life expectancy, higher than any other country. The answer is that they can treat diet right. The Japanese basically consume large amounts of fish, rice and bean products and treat their green tea as a treasure, just as the Bavaria people treat their beer. This diet is good for people with type A blood. Whoever wants to live longer must have a reasonable diet according to the blood type.

Which blood group has the longest longevity?

According to the Russian Communist Youth League Journal reported that Russian physicians have found a lot of blood type and disease related evidence, the following are their research results.

Experts believe that people with blood type O longevity; people with type A blood almost no immunity to smallpox, mosquito bites

also love them; people with type B blood are less cancer; and people with type AB blood have high immunity.

People with type O blood are susceptible to disease, including stomach ulcers and duodenal diseases, cirrhosis, cholecystitis, appendicitis, bronchial asthma, abscess, etc.. Although usually easier to get sick, but the average life expectancy is significantly longer.

People with blood type A susceptible Staphylococcus infection, Salmonella disease, tuberculosis, diphtheria, dysentery, influenza, rheumatism, atherosclerosis, myocardial infarction, epilepsy, chronic alcoholism and other diseases.

People with type B blood are susceptible to diseases such as dysentery, influenza, nerve root inflammation, bone disease, urogenital system, arthritis, etc..

People with type AB blood are susceptible to septic infections, acute respiratory diseases, viral hepatitis and other diseases. According to statistics, people with type AB blood suffer from schizophrenia more than 3 times higher than other types of blood, but type AB blood in the ratio of tuberculosis, pregnancy anemia is much lower than other types of blood.

Which blood group has the longest longevity?

Type B personality the most longevity

In the eyes of psychologists, personality is not only about destiny, but also about what you are suffering from." Chinese

Academy of Sciences Institute of psychology, director of the elderly psychological research center, said Li Juan, like blood type A, B, and O type, human character is divided into A, B, C, D four kinds, and closely related to the probability of human disease.

Type A personalities zhengjianghaoqing, the concept of time and desire is very strong, and strive to occupy the leadership position, the pressure is relatively large, nervous, excited, their risk of hypertension, cardiovascular and cerebrovascular diseases is the ordinary people of the 2 - 3 times; type C personalities through interpersonal anxious, always swallow, repression, such a person is most likely to get cancer; type D personality is also called "distressed personality", the most obvious manifestation is negative and sorrow and loneliness, these are the risk factors for cardiovascular disease. "Heartless, laughing and talking" refers to the B type character, they are very satisfied with the present life, contentment, relaxation, no mood swings, so these people into the ranks of the highest probability of "longevity".

The 84 year old Chinese medicine master Lu Guangshen head UFA, from the appearance point of view is about 50 years old, he summed up his health tips said: "I was a heartless person, what things are not personally." Lu Lao smiled and said he never read the first test, but is always the first assignment, because do not want to give myself so much pressure. He said: "when you have a positive mental state, the body's immune function will be better." Shanghai, Zhabei District's oldest 107 year old Bao Tingqin, the biggest feature is optimistic and cheerful. The old man has bad ears and can't hear others. But when he opens

his mouth, he must be happy and nod his head. Bao Tingqin's daughter revealed that the old man did not "overnight worry", encountered trouble, and always sleep, it all disappeared.

According to the China Elderly Association survey, in centenarians longevity reasons, genetic genes accounted for 15%, social factors accounted for 10%, medical treatment improvement accounted for 8%, climate conditions accounted for 7%, and the remaining 60% are dependent on the elderly themselves. One of the secrets of being in the first place is mentality.

"For the modern people, the anger is out of the mind, the gas is out, the urgency is made, and the disease is eating.".

"China chief health education expert Professor Hong Zhaoguang told reporters that he met a 94 year old man, hefatongyan, vigorous walking, looks like 60 years old. He asked the secret of longevity, what to eat supplements, what sports do, he smiled and said: "I have two words, called" laughing and talking, heartless. "." "Heartless" refers to the open-minded, small confused. "Talking and laughing" refers to optimistic and cheerful, something does not hold in mind. In the West there is a saying, "don't worry, don't get angry, don't use blood pressure meter."". Visible, cautious and angry is a major psychological barrier to longevity. So, to be a little confused, natural and unrestrained, a little wider mind.

Which blood group has the longest longevity?

A talkative person lives long

Beijing has more than 1000 "anti-cancer star" investigation, almost all people think that the reason for survival is a good attitude, once the spirit of collapse, it is all over. Researchers at the University of Pittsburgh in the United States followed 90 thousand women for 8 years and found that people with an optimistic personality had a 14% lower mortality rate and a 9% lower risk of heart disease. A survey of 2015 cancer patients in Norway also found that those with a more sense of humor had a 70% higher survival rate than those with a poor sense of humor.

"To maintain a sunny attitude is far superior to any good doctor. It is not only beneficial to the coordination of the cerebral cortex and nerve, but also can enhance the immunity of the organism and delay senility." Professor Zhou Yujie, director of the twelve cardiovascular area at An Zhen Hospital in Beijing, Capital Medical University, said that studies show that cheerful people tend to be more immune than sensitive people. All sorts of bad moods can change your body on weekdays. For example, pulse, heartbeat, breathing appears to accelerate the symptoms will be angry; sorrow will make the digestive juice digestive gland secretion reduced, loss of appetite; fear, lying can make central nervous, always leads to increased blood pressure.

This is because the secretion of people unhappy and happy of different substances -- secretion is not happy when the adrenaline is, this is a stress hormone, causes vasoconstriction, increased blood pressure, excessive secretion, can lead to hypertension and heart disease; happy

secretion of endorphins, which can make the people feel good.

No matter who is a nag, will make people complain incessantly. But in the eyes of Yang Jinsheng, a researcher at the Chinese Academy of traditional Chinese medicine, it is also a recipe for longevity. He believes that nagging can mobilize memory and language expression, but also exercise brain cells. People often talk, can make oral and throat muscles get exercise, is conducive to maintaining the patency of eustachian tube, the outer and inner ear pressure balance, health care for tinnitus, deafness, speech driven ocular and trigeminal motor, can also prevent presbyopia, senile cataract and visual acuity.

Have a prescription for heart therapy

"Better than medication diet, diet therapy". To a certain extent, a good drug is better than a reasonable meal, and a good meal is better than a good one. In response, several experts have opened a prescription for heart therapy.

Laughter is a nutrient. Studies have shown that laughter can lower blood pressure; laughter for 1 minutes can lead to 10 minutes of rowing; laughter can also release stress and reduce depression;

Laughter can stimulate the body's secretion of dopamine, causing euphoria. Middle aged and elderly people should have more contact with people with a sense of humor, more comedies and cartoons, and more comic dialogue.

"If therapy" is a medicine. The White House doctor gave Bush

a healthy recipe: if therapy, more than a week for at least 15 hours and family communication; communication between husband and wife every day at least two hours, including dinner or lunch.

The friend is "not old Dan"". The long-term loneliness of the elderly can cause enormous social and psychological pressure, and may even cause endocrine disorders and decline in immune function. Australian researchers have found that people with a broad circle of friends live an average of 7 years. So, even the retired elderly, do not always hold back at home, we should strive to expand the circle of life, and old friends, and try to take the initiative to say hello to have neighbors.

Tolerance is the regulating valve. In social contact, loss, misunderstanding and injustice are unavoidable. The best choice for these is to learn tolerance. A person who is not tolerant and knows how to make demands of others can easily cause nerve stimulation, vasoconstriction, and blood pressure, which can lead to a vicious cycle of psychology and physiology. And learn tolerance is tantamount to their psychological installed control valve.

Indifferent is the immune agent. A little thing is a fool, but a great one. Worry about some trivial things all day long, the heart will be very tired. You may as well be smart and generous, keep a pleasant mood and a sense of inner satisfaction, and help to prolong life.

睡眠基准心率多少才健康

睡眠基准心率多少才健康 据研究发现,人的一生总的心跳次数是一个相对固定的值,也就是说睡眠基准心率过高可能会影响人的寿命。据统计人的总心跳数约为25亿次至30亿次,也就是说如果睡眠基准心率在60次左右,其寿命就可达93岁。睡眠基准心率减慢,人的寿命就会延长,而睡眠基准心率大于80次,寿命就会明显缩短。大量临床研究也证实,睡眠基准心率偏快的人,发生癫痫病及各种心血管疾病的概率明显增加。 睡眠基准心率过快过慢都不好 通过观察动物的心率及其寿命的关系,科学家发现,小型哺乳动物如鼠类、兔类等心率很快,每分钟可达数百次,但它们的寿命仅有1~3年。与之相反,大的哺乳动物如鲸,心率很慢,每分钟仅20次左右,而他们可以活30~40年。其中一种叫格拉帕哥斯的乌龟寿命可长达177年,它的每分钟心跳数为寥寥无几的6次。 现如今很多人都有防范心脑血管疾病的意识,但他们却不了解,进行心脑血管疾病的防治,第一步就是进行心脏的管理。而管理心脏其实很大一部分就是管理心率。 心率是什么?心脏就像一个水泵,血液流进心脏,再由心脏不停地将血液泵出,完成血液在体内的循环,可以说心脏是整个生命的动力来源。而心率,是指心脏在一分钟内的跳动次数,也就是心脏泵血次数。心率在43-83内属于正常范围即并非不健康,而心率在50-70范围内则证明心脏机能良好,但针对心血管病人,其心率则需要控制在55-65之间。 心跳快慢与心血管疾病有什么关系? 近年来越来越多的医学研究结果提示,睡眠基准心率增快可增加心血管疾病的发病率和死亡率,从而对健康造成严重危害。 心率加快,就会造成体内交感神经活跃。而交感兴奋,就会分泌出大量激素物质,在这些激素物质的作用下,人体会出现心率加快、血压升高、呼吸加快等症状,心脏的消耗及负担也同时变大。而交感神经活跃和高血压其实是互为因果的关系。也就是说,心率过快,发生高血压的概率会增高,而反过来,血压高也会造成心脏功能的损害。

高中人生在于奉献议论文范文

高中人生在于奉献议论文范文 高中人生在于奉献议论文范文1 看完甲和乙的对话,明白了两个不同的观点:一个希望得到,一个懂得奉献。我们当然是要向乙学习,做一个懂得奉献的人。学会对家庭奉献,是人生的起点。在我们的家中,我们是最小的,上面都是长辈,爸爸妈妈爷爷奶奶外公外婆,每个人都对我们的成长付出很多,如今我们长大了,也要为他们多做些力所能及的事,例如:吃完饭后洗洗碗;地面脏了就扫扫地、拖拖地。爷爷奶奶外公外婆年纪都大了,腰也不好了,爸爸妈妈工作很辛苦,日常事物也很多,那我们可以自己的衣服自己洗,自己房间的卫生自己打扫,不需要父母再帮了。为家庭做出贡献你就会有所成长。为家庭做贡献,这还只是开始。为班级做贡献,是人生的升华。班级是个大家庭,虽然不是陪我们成长,为我们付出长辈,但他们是我们的同学,朋友和家人。不说大的,在看到讲台上有作业本却没人发时,我们就应该第一个站出来把它发掉;当班级有活动时,我们要踊跃报名为班级增光;运动会班里有同学参加比赛时,我们要为他们加油呐喊;当有同学跑800、1000米时,我们要做好服务。这些都是我们为班级做贡献。若你舍得为班级做贡献时,你的人生就会充满意义。为社会做贡献,是人生的顶峰。我们是社会的一份子,当你能为社会做贡献时你就是人生的赢家。那些伟人为什么会被后代门敬仰呢?因为他们有为社会贡献的大爱。贝多芬在得知自己耳聋后并没有因此放弃,而是坚持谱曲,即使生命垂危时也还是坚持不懈,为人们留下不朽名作;霍金,一个帕金森的重度患者,严重到全身上下没有一块肌肉可以自由活动,但他并没有放弃,而是为世人留下了伟大的《时间简史》。一开始他们也只是和我们一样的人,甚至比我们条件还要差,但他们却有为社会做贡献的决心。因为他们为社会奉献了,他们的人生达到了顶峰。人生需要奉献,无论为什么奉献,为大家,为小家,只要你做了哪怕是一点点的奉献,你的人生就充满了意义。高中人生在于奉献议论文范文2 落红不是无情物化作春泥更护花。”从古至今人生的意义在于奉献。奉献,是一种美德;我们为人要善于奉献,只有奉献了,付出了,才会领悟到其中的乐趣。

睡眠中如何增强记忆 tdcs电刺激篇

睡眠中如何增强记忆?tDCS电刺激篇 文/ 博超同学审稿/ ChenLee yue li 熙祎编辑/shin当研发出假肢,让截肢的患者能够重新走路的时候,同样的科技就能用来为健康人进化升级,如果能够发现防止记忆力衰退的方法,同样的方法也能用来为年轻人增强记忆力,治愈与进化之间并没有明确的界限,医学一开始几乎总是要拯救那些低于正常下限的人,但同样的工具和知识也能用来超越正常的上限。《未来简史》尤瓦尔赫拉利数十年来,医学与神经科学在精神类疾病治疗上取得了很多突破性进展,比如说:用有创的DBS/深部脑刺激技术取代病灶切除手术来治疗癫痫,用无创的TMS/经颅磁刺激技术和tDCS/经颅直流电刺激技术,通过刺激大脑皮层来缓解抑郁症和精神分裂症患者的病情,反过来,临床上用于治病的技术,也可能被科学家搬进实验室,用于研究如何增强正常大脑的功能。近年来,类似的研究屡见报端,例如:2014年美国Newsweek 曾报道:Northwest大学研究人员用TMS增强正常人的记忆功能。2006年印度DNA(Daily News & Analysis)曾报道:德国Lubeck大学研究人员通过电刺激使正常人增强记忆。同年新华社也对做了相关报道:科普:睡眠时刺激大脑可能提高记忆力。我的上一篇文章提到,1924年两位美国科学家发现睡眠能有效地减缓遗忘。经过多年的研究,科学家逐

步将睡眠的抗遗忘功能与睡眠早期的慢波睡眠联系在一起,研究发现清醒时存储在海马内的短期记忆,在慢波睡眠中会逐步向长期记忆存储中心-新皮层转移,而睡眠当中新皮层- 丘脑-海马的“交流对话”,即slow oscillation-spindle-sharp wave ripple同步振荡为此提供了实验依据。本文便以2006年德国Lubeck大学的科学家在国际顶级期刊nature发布了一篇了文章:睡眠中调节慢波振荡增强记忆为例,阐述睡 眠中增强记忆巩固的方法。Question先前的研究中作者发现,在大脑皮层施加微弱的delta直流电流刺激,能增强皮层的 脑电振荡,而在慢波睡眠中,新皮层的慢波振荡以“从上到下”的方式驱动丘脑和海马同步活动,促进短期记忆向长期记忆不断转化。能否通过低频电刺激的方式,改变新皮层的慢波振荡,进而增强陈述性记忆巩固呢?Part 1 实验设计慢波睡眠中新皮层的慢波振荡频率为0.5-4Hz(delta波),主频率 为0.7-0.8Hz,在学习后的慢波睡眠中,通过微弱电流刺激 前额叶新皮层,改变新皮层的慢波振荡,探究慢波振荡改变与记忆巩固之间的联系。Part 2 实验流程医学生因为在学习中需要记忆很多知识的缘故,通常都有着出色的记忆能力,因此研究人员招募了一批医学生作为被试。实验分为刺激组和非刺激组,在研究人员的引导下,被试带上电极帽,睡前完成单词记忆任务(能用语言表达的)和程序性记忆任务(说不出但会做的),进入睡眠后第一个睡眠周期的慢波睡眠阶

睡眠健康知识

睡眠健康知识 3月21日就是“世界睡眠日”,今年的主题就是“健康睡眠、幸福中国”。睡眠占据着人生1/3的时间,睡眠质量如何会直接影响到日常生活、工作的情况。 我们平常所说的失眠就是指睡眠障碍,或者各种原因引起的睡眠不足。世界卫生组织公布的最新数字显示,全球近1/4的人受失眠困扰,每年近8、6亿人患有失眠障碍,仅中国就有0、75亿。与此同时,“睡不好觉”也带来了各种疾病,甚至缩短了人们寿命。全世界每年安眠药物市场总销售额已达几十亿美元,与睡眠相关的枕头、床垫等产业更就是蓬勃发展。人们逐渐意识到,必须捍卫自己“睡个好觉”的权利了。 失眠对个人身心健康造成的伤害就是不容忽视的,睡眠质量不好会导致工作效率下降,身体状况失调。睡眠的健康知识有助于人们正确的对待失眠,可以帮助人们减轻失眠的症状,改善睡眠质量。 怎样才算就是失眠呢 1、难以入睡,就寝后半个小时不能入睡。 2、易于惊醒,每次觉醒时间超过半小时。 3、睡眠持续时间短于正常,即醒得过早。

有上述一种表现且起床后有困乏,头脑不清,甚至有头疼、头晕等现象,而且持续时间较长,影响工作与生活的,在临床上可诊断为失眠。 根据失眠持续的时间,失眠可分为: 1、短暂性失眠,时间少于一周。这类失眠一般在人突然面临较大的问题时发生,如压力,焦虑,兴奋等。另外,在到了海拔过高的地方或有时差变化时也会发生。 2、短期性失眠,时间一周到一个月。严重或持续性的压力会导致这类失眠。如果对压力处理不当,这类失眠会演变为慢性失眠。 3、慢性失眠,时间长于一个月。这类失眠一般就是多方面因素综合作用的结果。慢性失眠者往往就是平时睡眠质量不高,由上两种失眠转化而来。 有关睡眠的专项检查有哪些 部分人依靠临床症状即可诊断失眠症,还可根据病情选择专项检查,如多导睡眠图、多次小睡潜伏期试验、脑电图、肢体活动电图、唤醒标记仪等。 找出失眠的原因 1、身体上的疾病:如疼痛、肺部疾病、心脏病等,均容易引起入眠困难与睡眠不深。 2、环境因素:由于生活工作环境的改变、初到异乡不习惯环境、闷热的气温等可引起失眠,短期适应后睡眠即可改善。 3、心理因素:例如学习工作压力、家庭因素、婚姻问题、不愉快、受挫折等,也可引起失眠。心理因素解除后,失眠即可改善。

睡眠与衰老

睡眠与衰老(缺乏睡眠,衰老为4-5倍,细胞分裂寿命是五分之一):本人发现还丹服食术,并长期提供练功日记和照片上传验证 序言:深度睡眠下丘脑分泌的就是金华,先天铅汞气液自会产生,而且这一过程又是鸿蒙祖气相交接的时候, 钟吕地仙也有相关叙述,最终下视丘转化的就是先天乾金之气,此物能恢复青春, 这也是古代记载还丹之术的最初描叙, 有人说这是世界上最笨的方法,实际上这恰是最聪明的方法,所谓“造化有上下,功德不相殊”, 吕仙就讲的很对:“此事本然无大巧,只争逐日用功多,古代的一些方术,世人往往闻之者不信,信之者难为, 说出来一个人都没人相信,但坚持走下来,效果一下就出来了,立竿见影, 本人有幸拜读了一位老中医朋友珍藏的一些亡轶古医笈,早期医家也认为,人体就是一个容器,既可以养丹, 也可以直接服食仙药,但一旦接触女色和性生活,药物就散了, 仙药是什么呢,金,是最初的物质,也是最后要造化的物质, 如果要把这一切看成生理的变化过程,气液造化时,变而为精,精变而为珠,珠变而为汞,汞变而为砂,砂变而为金, 乃曰金丹,所谓“金来归性初,乃的称还丹”,这个就是先天乾金作用下的产物, 也就说,这纯粹是个造化的过程,而不用后天意识提取的残渣,一句话,气液的变化其实是在深度睡眠中产生的, 而后世丹法就不知道其中玄妙之处,愈加意识及识神练功,药物早就散了,你所要做到的只是服食而已, 古仙经云:一者以掩蔽,世人莫知之,也就是说最早的还丹之术,其实很简单,从头到尾就是一个自然造化的过程, 能守住这个“一”就能老而复壮,恢复青春,而修持这种还丹之术的人,是必须要克制情欲,彻底断除一切淫欲根本, 最初我并不相信,但方法一验证就有效果,而且西医关于对睡眠下产生这些物质,通过一些生理组织的临床研究, 也发现这些称之为“酶”的激素是一种能够具备返老返童的的物质,可以倒拨生物钟,以下的西方生理学解剖实验, 也能看这一类的物质的本源,具体的操作方法和原理在论文的后面,也可以直接看结论。还有一点:本人利用这套方法,仅仅修炼数年,就已经返还青春,这二年的变化实在太大 睡眠对生理组织的影响—译文,词条属于知识产权编辑保护(参见百科-睡眠部分资料节选)睡眠百科:https://www.doczj.com/doc/2816616951.html,/view/48319.htm 中国传统文化网:https://www.doczj.com/doc/2816616951.html,/zybx_show.aspx?Id=533 《睡眠与睡眠质量—男性、女性睡眠完全手册》一书节选: https://www.doczj.com/doc/2816616951.html,/content/11/1018/16/258492_157175027.shtml 下丘脑与松果体:返老还童的圣水一文节选: https://www.doczj.com/doc/2816616951.html,/content/11/1225/21/6734749_174948888.shtml

良好的睡眠对记忆力非常重要

良好的睡眠对记忆力非常重要 新的研究显示:除了能帮助你恢复精力以外,睡眠还能显著地改善你的记忆,保 护记忆免受外界的干扰外。“睡眠对记忆的巩固作用非常大,甚至超出了我们的想象。”美国波士顿哈佛医学院的博士后、研究负责人杰弗里说。他们的研究结果发布在5月 2日在波士顿举行的美国神经科学年会上。 在研究中,研究人员主要集中于睡眠对“陈述性”记忆的作用上,诸如特殊的事实、情节和事件。“我们的研究旨在了解睡眠是否对记忆的巩固有影响,特别是对事实、事 件和时间的记忆上。”杰弗里说。“我们已经知道睡眠对程序性记忆有帮助,比如学习 一个新的钢琴曲目,但是不能确定睡眠是否对百年来都在争议的陈述性记忆是否有帮助。” 这项研究涉及48名18—30岁的成年人,他们都有正常、健康的睡眠规律,没有 服用任何药物。他们被要求背记20组单词并在12小时后测验回忆,然后把他们分为 不同的环境组进行测试:在测验前睡眠组,测验前清醒组,测验前有干扰的睡眠组, 测验前有干扰的清醒组。清醒的两组在早上9点背记单词,在晚上9点年进行测验, 整日里保持清醒状态。睡眠的两组在晚上9点背记单词,然后睡眠,早上9点进行测验。另外,在测验前,睡眠和清醒各一组要求背记另一组20对单词进行干扰,然后和其他两组一起测验,以了解干扰(竞争性信息)对记忆的影响。结果显示:睡眠对参 与者的回忆有帮助,即使受到了竞争信息的干扰后也是如此。 研究者发现,那些学习完单词后睡眠的人成绩最好,不管他们是否受到干扰,都 能成功地回忆多数的单词。没有受到干扰的睡眠组参与者回忆的单词组数比没有干扰 的清醒组多12%(94%比82%)。而受到干扰后,两组的差别就更明显了:76%比32%。“我们非常惊讶地看到,数据比率是如此鲜明的证实了我们的研究设想和努力。”杰弗里说。

正常人的睡眠时间

人的睡眠时间 有人做过一个试验:让一些健康人72~90小时不睡觉,结果他们先后都出现了"精神异常";可是停止试验,让他们睡上几个小时后,这些异常现象便消失了。 每天应该睡多少时间呢?对于大部分成年人来说,每晚睡七八个小时就足够了。美国癌症协会作了一个调查,平均每天睡七八小时的人寿命最长;相比之下,每晚睡眠时间不足4小时的成年人,死亡率要高出180%;每晚睡10小时以上的成年人,死亡率要高出80%。 以下是有关人体睡眠时间的数据: 年龄睡眠时间 新生儿20-22小时 2月婴儿18-20小时 1岁15小时 2岁14小时 3-4岁13 小时 5-7岁12 小时 8-12岁10 小时 12-18岁9 小时 成年人7-8 小时(不宜少于6小时) 60-70岁9小时 70-90岁10小时 90岁以上不宜少于10小时 睡眠时间过长与睡眠不足一样,都可导致神疲、体倦、代谢率降低,睡眠不宜过长,睡的时间过长后,心脏的跳动便会减慢,新陈代谢率亦会降得很低,肌肉组织松弛下来,久而久之,人就会变得懒惰、软弱无力起来,甚至智力也会随之下降。因此,人的睡眠时间不宜过长,成年人昼夜7-8小时也就足够了,如果想用增加睡眠时间来获得健康,那将会适得其反,增加疾病,缩短寿命。 日本名古屋大学副教授玉腰晓子调查指出,一天平均睡七小时的人比较长寿,睡眠时间过长或过短者死亡率较高。 在睡眠时间的调查中,男性一天平均睡七点五小时,女性则为七点一小时,其中死亡率最低的男女,睡眠时间都约为七小时。 一天睡眠时间平均在四小时以下,或是十小时以上的人,不管是男是女,死亡率都相当高。另外,让人意外的是,一直以来人们都认为“每天睡八小时”最标准,但是调查中显示,睡八小时的人比睡七小时的人死亡率来得高。 不过也有神精医学专家指出,睡眠时间其实是随着年龄和季节变化而有所不同,故只要合乎自己的生理需求,保持充足优质的睡眠,则不须太在意睡眠时间一定要维持在七小时 当然,睡眠时间的长短与长期形成的习惯很有关系。俄国的彼得一世每天只睡5小时,爱迪生只要睡2~3小时就能恢复精力,拿破仑有时只要靠在树上打个盹就能消除疲劳,但爱因斯坦每天却要睡10个小时。

生命在于奉献——读一杯蜜是练过几只蜂的有感

生命在于奉献——读《一杯蜜是练过几 只蜂的》有感 生命在于奉献 读《一杯蜜是练过几只蜂的》有感 实验小学六年一班徐梓骞 贝壳虽然死了,却把美丽留给人间;春蚕虽然死了,却用丝绸温暖世界;蜜蜂虽然死了,却留下永恒的甘甜。(举例式开头,令人沉思,值得借鉴。) 这篇散文主要讲了作者再买蜜的过程中,发现蜜茶涨了一倍有余,惊问其故。女孩却答:“不贵,一杯蜜是练过几只蜂的。(简单介绍,过渡。) 一杯在我们手里也许不算什么的蜜茶,是许多蜜蜂历尽千辛万苦才采集到的。我们一口饮尽一杯蜜茶,正如饮下几只蜜蜂的灵魂。蜜蜂是可爱的,它们为了寻找花中的蜜,万苦不辞。在这世上又有多少人能像蜜蜂一样真正的奉献呢?

以前读过一则传说:“有年近七、八十老人,自愿舍身济众,绝不饮食,惟澡身啖蜜经月,便溺皆蜜,即死,国人殓以石棺,乃满用蜜浸之,镌年月之棺盖之,俟百年后启封,责成蜜剂,遇人折伤肢体,服少许,立愈,虽彼中也不可多得,俗曰蜜人。”(引用故事传说,文献资料,尽量不要大篇幅的全是文言文,内容过长也不好。)这个蜜人的传说不一定可信,但是一个人在年迈之时还能济助众人,可贵的不在于他化成了一杯蜜,而是他的奉献精神流传了下来。 一般人是从贪欲中追求快乐,从个人角度去占有快乐,从物质中享受寻找快乐。而要想获得内心真正的平衡,(快乐)一定要去除自私自利的观念,净化自己的身心,变化自己的气质,庄严自己的思想,从奉献中获得快乐。(深入议论,升华主题,这一段写的很精彩,值得借鉴。) 人活在世上,一定要时刻警醒自己去帮助他人,应该努力去发现世间美好的事物。那么,从社会的反映中,你将发现一个可爱的自我,假如你在即将离开人间的时候,身边没有一个人紧紧握住你的手,这说明你在一生中从未伸出友爱之手去帮助他人,这是多么可悲的人生啊!(对比议论,使富有内涵。)

睡眠和记忆之间关系的研究

万方数据

万方数据

万方数据

睡眠和记忆之间关系的研究 作者:宋国萍, 苗丹民, 皇甫恩 作者单位:宋国萍(中国科学院心理研究所,北京,100101;北京军区467医院,石家庄,050800), 苗丹民,皇甫恩(第四军医大学航空航天医学系心理教研室,西安,710032) 刊名: 心理科学 英文刊名:PSYCHOLOGICAL SCIENCE 年,卷(期):2004,27(6) 被引用次数:1次 参考文献(15条) 1.SMITH C Sleep states and learning: a review of the animal literature 1985 2.SMITH C;Conway JM;Rose GM Brief paradoxical sleep deprivation impairs reference, but not working, memory in the radical arm maze task 1998 3.Wilson MA;McNaughton BL Reactivation of hippocampal ensemble memories during sleep[外文期刊] 1994 4.Karni A;Tanne D;Rubenstein BS Dependence on REM sleep of overnight improvement of a perceptual skill[外文期刊] 1994 5.Roehrs T;Roth T Sleep-wake state and memory function[外文期刊] 2000 6.Kamphuisen HA;Kemp B;Kramer CG Long-term sleep deprivation as a game. The wear and tear of wakeulness 1992 7.Tononi G;Cirelli C The frontiers of sleep[外文期刊] 1999 8.STICKGOLD R;Hobson JA Visual discrimination learning: both NREM and REM are required 1998 9.uzsaki G The hippocampo-neocortical dialogue 1996 10.Hinton GE;Dayan P;Frey BJ The "Wake-Sleep"algorithm for unsupervised neural networks[外文期刊] 1995(5214) 11.Timothy R;Thomas R Sleep-wake state and memory function 2000 12.Forest G;Godbout R Effects of sleep deprivation on performance and EEG spectral analysis in young adults 2000 13.Harrison Y;Horne JA Sleep loss and temporal memory 2000 14.Drummond SPA;Brown GG;Stricker JL Sleep deprivationinduced reduction in cortical functional response to serial subtration 1999 15.Drummond SPA;Brown GG;Gillin JC Altered brain response to verbal learning following sleep deprivation[外文期刊] 2000 本文读者也读过(10条) 1.058 睡眠与记忆[期刊论文]-国外医学(社会医学分册)2001,18(4) 2.吴惠涓.赵忠新.黄流清.WU Hui-juan.ZHAO Zhong-xin.HUANG Liu-qing睡眠对记忆巩固及突触可塑性影响的临床与实验研究进展[期刊论文]-中华神经医学杂志2009,8(4) 3.刘飞睡眠能为记忆"腾出空间"[期刊论文]-老年教育(长者家园版)2009(4) 4.高妍睡眠对于记忆巩固的影响[学位论文]2010 5.李洋.王得春.胡志安.LI Yang.WANG De-Chun.HU Zhi-An睡眠的记忆巩固功能研究进展[期刊论文]-生物化学与生物物理进展2008,35(11) 6.张福康.侯一平.宋焱峰.刘向文.王德贵剥夺异相睡眠对大鼠空间参考记忆的影响[期刊论文]-中国临床康复

睡眠质量决定生活质量1.0

睡眠质量决定生活质量,带你了解睡眠知识 睡眠是高等脊椎动物周期性出现的一种自发的和可逆的静息状态,表现为机体对外界刺激的反应性降低和意识的暂时中断。人的一生大约有1/3的时间是在睡眠中度过的。当人们处于睡眠状态中时,可以使人们的大脑和身体得到休息、休整和恢复,适量的睡眠有助人们日常的工作和学习。科学提高睡眠质量,是人们正常工作学习生活的保障。 在生活节奏不断加快的今天,睡眠质量的好坏已成为大众普遍困扰的难题。失眠、睡眠不足、睡不醒等现状时常困扰着我们。日常生活中,你是否有过这样的体验经历:

·夜晚异常清醒、难以入睡,白天精神恍惚、困倦难忍; ·虽然感觉非常困,想睡觉,但无论如何就是睡不着; ·本来已经睡着了,稍微有点声音又从梦中醒来; ·熬夜到凌晨四五点,仍然毫无睡意…… 失眠指不容易自然地进入睡眠状态的症状,对睡眠时间和(或)质量不满足并影响日间社会功能的一种主观体验。其常见表现是入睡困难、睡眠质量下降、睡眠时间减少、记忆力和注意力下降等。该情况可能是短期的,持续几天到一周,也

可能是长期的,持续一个月以上。 具体表现 失眠的不同表现可以体现在睡眠的不同阶段。其中睡眠起始失眠表现为入睡困难,睡眠维持失眠表现为整晚频繁醒来或难以维持长时间睡眠,晚期失眠表现为

清晨早醒而无法再回到睡眠状态[1]。 1.主观诉说对睡眠数量和质量的不满,并伴有下列至少一个表现:入睡困难; 维持睡眠困难,频繁醒来或醒后再入睡困难;早醒且不能再入睡。 2.睡眠紊乱引起的有痛苦,或导致社交、职业、教育、学业、行为或其他重 要功能的损害。 3.每周至少三晚睡眠困难或至少三个月存在睡眠困难。

生命的意义在于奉献作文800字(高分作文)

生命的意义在于奉献作文800字 每一条生命,都如夜空中的流星,从无穷无尽的时间和空间中到来,转瞬间散发着耀眼的光芒,又悄悄离去。留下的,也只有无穷无尽的时空。同样的呱呱坠地,又同样的悄然逝去。一样的开始,一样的结局,也正因此,我们才需要一个不一样的过程,一个有意义的生命。 知了经过几个严寒、酷暑、才有了一个夏天的生命之音!昙花忍受了多久的寂寞独立,才有了一个晚上的绝美花姿!他们的生命短暂却迷人。可见生命的意义不在于长短而在于生命的能量。正如同司马迁所说:“人,固有一死,或重于泰山,或轻于鸿毛。”我们当然不愿意轻于鸿毛,那么怎样的生命才叫有能量呢?我想不过二字,奉献。 奉献二字,听似高远,却近在身边。政客们安邦治国,这是奉献;科学家以科技造福人类,这是奉献;文学家用笔墨滋润人们的心灵,这是奉献;农人们用汗水种出作物,这是奉献;清洁工用双手换来清洁的环境,这何尝不是奉献呢?没有高低贵贱,每一种奉献都是平等的。没有平凡伟大,每一个奉献的生命都是可敬的。见人有难,伸手援助,你奉献了你的善心与爱。恪尽职守,一丝不苟,你奉献了你的能力。当然,故意做作的付出不可叫奉献。只有有着一颗奉献之心的奉献,才叫奉献。 世界从来不是为了一个人而存在,相反,每个人都应该为了世界而存在!我们享受这世界的美好,接受着无数人的爱,也承担着社会给与我们的责任。我们不能让爱我们的人失望,因此我们要为了他们而奉献,我们必须回报给予我们一切的世界,因此我们要为了世界而奉献。如果每一个人都乐于奉献,那爱与美将充满人间,如果每一个人都自私自利,那世界将变成冷漠的炼狱。为了我们的生命意义,为了爱我们的人和我们爱的人,也为了给予我们一切的世界,我们应该奉献。 奉献二字,给我们每个人都提出了要求。学生门修身养性,博观而厚积,让我们未来有更好的能力去奉献;教师们传道授业,让智慧的火种传递下去;工人们认真劳作,为每一个成果打下坚实基础;官员们清廉执政,为人名的生活做出奉献;科技人员认真研究,用技术造福民众;学者潜心思考,为人类的精神开创一片片新天地……也许我们职位不同,也许我们能力有异。只要我们作好自己,坚守自己的责任,即使无法像白求恩那样,为了病人放弃本可以保住的生命,我们也可以做一个纯粹的人,我们的生命也将对得起生命这个奇迹。 让我们每个人都升出自己的手,敞开自己的心,为世界奉献我们的生命,让生命散发光彩。

快速眼动睡眠与学习记忆的关系研究

快速眼动睡眠与学习记忆的关系研究 研究背景 在20世纪,Aserinsky和Kleitman突破性地发现快速眼动睡眠(rapid eye movement sleep,REM睡眠),Aserinsky在实验中观察到人们在夜里大概每90 min就出现一次眼球来回转动且脑电活动增加,持续时间从睡眠开始时的几分钟到后来接近1 h,Kleitman发现在REM期叫醒的被试者比非快速眼动睡眠期(NREM期)叫醒的被试者更倾向说在做梦[1]。solms和Mark提出了REM睡眠(快速眼动睡眠)=梦的公式;Takeuchi和Tomoka等人利用ERP(事件关联电位技术)证明了REM睡眠与梦及其回忆程度有密切关系[2]。梦反映了记忆的活化和重组,这些记忆以及与记忆有关的东西可以在梦加工处理过程中进行修饰[3]。 实验设计依据 虽然睡眠对记忆有促进作用,牢固的记忆力发生在正常觉醒状态时,但还没有明确的证据显示许多记忆任务是否受REM睡眠的影响[3]。REM睡眠可是否以提高记忆,缺乏实验的验证,本实验通过REM睡眠剥夺和小鼠Morris水迷宫记忆实验,旨在探究REM睡眠对记忆的影响。 REM睡眠时,眼球在此阶段时会呈现不由自主的快速移动。并且梦境中跳跃性运动是眼睛在对记忆进行扫描[4]。但梦境和REM睡眠的

产生与眼球的转动是否有着密切的联系,缺乏实验的验证,本实验通过切断动眼神经,观察小鼠的表现,探究REM睡眠产生与眼球转动之间的联系。 最后通过实验得到的结论,再根据前人实验的结论,达到探究快速眼动睡眠与学习记忆的关系的目标。 研究目标 1.探究REM睡眠产生与眼动之间的联系。 2.探究REM睡眠对记忆的影响。 研究内容 1.动眼神经切断后小鼠REM睡眠产生情况。 2. REM睡眠剥夺后,小鼠的落水次数的变化(REM睡眠产生次数的变化)。 3.小鼠动眼神经切断和REM睡眠剥夺后,小鼠学习记忆能力发生的变化。 实验设计 实验动物: 选择年龄、体重等生长状况相同的雄性小鼠40只。分别随机均分为甲、乙、丙、丁四组,每组10只,22℃恒温环境中饲养,开灯时间为早8:00,关灯时间为晚20:00。

睡眠决定寿命 每天睡几个小时可长寿(Sleep determines life and sleeps

睡眠决定寿命每天睡几个小时可长寿(Sleep determines life and sleeps a few hours a day for long life) Sleep determines life and sleeps a few hours a day for long life One day must be 8 hours of sleep? According to the American Cancer Society, the average person who sleeps 7~8 hours per night has the longest life expectancy; 80% of people who sleep less than 4 hours a night are short lived. But Guo Xiheng, director of the center for respiratory diseases diagnosis and treatment at Beijing Chaoyang Hospital, also pointed out that the best sleeping time for different age groups is different, and should be scientifically sleep according to their age. Sleep determines life (picture: Oriental IC) People over 60: sleep 5.5~7 hours every day The old should go to bed at 12 every night, and sleep at night for 7 hours, or even 5.5 hours. Alzheimer's association data show that people who sleep within 7 hours of sleep each night can age their brain for 2 years. Long term sleep more than 7 hours or lack of sleep will lead to poor attention, even Alzheimer's disease, increased risk of early death. Recommendation: the most common sleep problems in the elderly are dreaming and insomnia. Dreaming is due to the deterioration of the brain function of the elderly. Insomnia is caused by the decrease of melatonin secretion in vivo, and melatonin is one of the important factors that determine sleep in vivo. Guo Xiheng suggested that night sleep quality is bad for the elderly,

以奉献为主题的作文3篇

以奉献为主题的作文 3 篇 1 奉献——就是这样简单 “只要人人都献出一点爱,时间将变成美好的人间.....”一听这首《爱的 奉献》,就让我想起几个星期在电视上看到那动人的一幕...... 那是令人感动的新闻。新闻讲述着:一个大约 5、6 岁的小男孩名字叫小土 华。他很不幸的染上可怕的白血病,需要骨髓移植。他家里很穷,根本就付不起 昂贵的医药费,就算付得起昂贵的医药费但也很难找到合适的骨髓。看到这里, 我的眼睛不禁的泛起泪光, 难道就要这个长大可能会有大好前途的男孩就这样的 被病魔折磨到死吗?“不”!这时候奇迹出现了...... 新闻播出后,人们纷纷捐钱给小土华,有些人不但是捐钱,而且还捐血,想 看看自己的骨髓适不适合小土华。虽然只是一点儿钱,可能帮不上小土华的忙, 但是我看到的更多是大家对小土华的关心...... 只是出一点儿力, 带给人家的却是更多是希望的曙光。 只要人与人之前互相 帮助,互相关心,这个时间将会变得更加美好。 奉献——就是这样简单 …… 2 生命在于奉献 从前,有一群藏羚羊在草原上无忧无虑地生活着。直到有一天,一群猎人闯 进了藏羚羊们无忧无虑生活着的大草原, 要捉捕藏羚羊。 藏羚羊们逃到了一个悬 崖,它们只有两个选择:一是跳到对面的悬崖逃生;二是被猎人逮捕到。这时身 体健壮的老羚羊主动让小羚羊跳到它们的身上, 再跳到对面的悬崖得以逃生, 而 自己却坠入万丈深渊。 这个故事让我想起了一个人,他用自己的生命让他人没有生命危险。 有一天,他驾驶着一辆大巴车,突然,有一块沉重的铁片从空中飞了过来, 砸破了挡风玻璃。他奋不顾身地用自己的胸口挡住了那块沉重的玻璃,这时,汽 车还行驶在高速公路上, 就在这短短的几十秒内, 他忍着剧痛把车子停到了马路 旁,这才没有撞上护栏,没让大巴车失控。这时,车上的 24 位乘客已经没有生 命危险了。 他就是吴斌,最美的司机,用自己的生命换来了车上 24 位乘客的生命。雷 锋曾经说过:“人的生命是有限的,可是为人民服务是无限的。我要让有限的生 命体现出无限的价值。”正如雷锋所说,吴斌就是在自己生命的最后一刻,让生 命体现出了无限的价值,让人们永远记住了他。
1/5

2018-近年来的许多研究证实睡眠有利于学习和记忆。不仅是学习后的睡眠具有记忆巩固功-word范文模板 (7页)

本文部分内容来自网络整理,本司不为其真实性负责,如有异议或侵权请及时联系,本司将立即删除! == 本文为word格式,下载后可方便编辑和修改! == 近年来的许多研究证实睡眠有利于学习和记忆。不仅是学习后的睡眠具有记忆巩固功 篇一:近年来的许多研究证实睡眠有利于学习和记忆。不仅是学习后的睡眠具 有记忆巩 一、整体解读 试卷紧扣教材和考试说明,从考生熟悉的基础知识入手,多角度、多层次地考 查了学生的数学理性思维能力及对数学本质的理解能力,立足基础,先易后难,难易适中,强调应用,不偏不怪,达到了“考基础、考能力、考素质”的目标。试卷所涉及的知识内容都在考试大纲的范围内,几乎覆盖了高中所学知识的全 部重要内容,体现了“重点知识重点考查”的原则。 1.回归教材,注重基础 试卷遵循了考查基础知识为主体的原则,尤其是考试说明中的大部分知识点均 有涉及,其中应用题与抗战胜利70周年为背景,把爱国主义教育渗透到试题当中,使学生感受到了数学的育才价值,所有这些题目的设计都回归教材和中学 教学实际,操作性强。 2.适当设置题目难度与区分度 选择题第12题和填空题第16题以及解答题的第21题,都是综合性问题,难度较大,学生不仅要有较强的分析问题和解决问题的能力,以及扎实深厚的数学 基本功,而且还要掌握必须的数学思想与方法,否则在有限的时间内,很难完成。 3.布局合理,考查全面,着重数学方法和数学思想的考察 在选择题,填空题,解答题和三选一问题中,试卷均对高中数学中的重点内容 进行了反复考查。包括函数,三角函数,数列、立体几何、概率统计、解析几何、导数等几大版块问题。这些问题都是以知识为载体,立意于能力,让数学 思想方法和数学思维方式贯穿于整个试题的解答过程之中。 篇二:第四部分判断推理之四逻辑判断

睡眠小常识

健康、深度睡眠 睡眠是一种生理需要,也是一种生命保障。人一生当中。有超过1/3的时间是在睡眠中度过的。优质而舒适的睡眠,对于每个人都是健康都至关重要。它能使您充满自信、朝气蓬勃地面对每一天的挑战,精神焕发、活力四射地出现在世人面前。 睡眠分深度睡眠和浅睡眠。睡眠的质量,不是看时间的长短,对人体健康起决定作用的是“深度睡眠”,6小时的深度睡眠是人睡得最熟、最香的阶段,此刻,你体内的激素在大量分泌,各种免疫细胞、受损细胞(尤其是脑细胞)在进行自我恢复、疲劳在恢复、能量在储存、消化系统在忙于吸收物资、废物在大量排泄…… 深度睡眠是孩子智力开发、身体长高;年轻人精力充沛;中年人身体强健;老年人健康长寿的保证。医学专家建议:青年人要呵护睡眠、中年人要保养睡眠、老年人要滋补睡眠。 深度睡眠的意义 深度睡眠又称“脑睡眠”期,大脑皮层细胞处于休息,起到了保养皮层细胞的作用,对稳定情绪、平稳心态、恢复精力极为重要。、 1.深度睡眠期人体各种生命活动降至最低。如血压下降、心跳减慢、 脑部血流量减少,呼吸慢而平稳、体温下降等。 2.深度睡眠期脑垂体分泌的生长激素的释放达到高峰,这种激素具 有促进骨骼生长和身体发育的作用,儿童在睡眠中长个子最快的原因即在于此。 3.深度睡眠能显著增强机体免疫能力。医学实验证明在深睡眠期可

用产生许多抗体,增强抗病能力。并且促进机体各组织器官的自我康复。 睡眠的重要性 1.补充人体的足够能力: 睡眠时全身基础代谢率降低,能力消耗减少,同时睡眠时人体合成代谢,使各组织消耗能力得到补充,为消除疲劳、体力恢复提供能力。 2.补增强免疫力功能: 睡眠时由于内分泌发生一系列变化能增强机体发生抗体,从而提高人体抵抗疾病的能力。 3.促进人体生长发育: 由于睡眠时生长激素分泌,会促进儿童的生长发育,对成人来讲也可促进蛋白质合成,有利于组织修补。 4.提高智力: 睡眠时能使大部分脑细胞处于休息状态,使神经细胞得到能力补充。有利于功能恢复,增强人的记忆能力,提高工作效率,同时有梦的快速眼动睡眠有益由于记忆,能阻止大脑对新知识的遗忘,有助于人们的创造性思维。 5.益寿延年: 睡眠不足会引起人体心理、心理一系列的变化,不利于健康。充足睡眠可增进健康,延长寿命。 总之,睡眠是生命的必需,对于的健康、精神专状态非常关键。睡眠

睡眠对我们的重要性

睡眠对我们的重要性 人为什么睡觉?人又为什么需要睡眠呢? 我们可能不能完全理解透彻其中的原因,但是我们大多还是知道,睡眠会让我们的大脑和身体得到休息,继而维持我们的生命。另外,睡眠质量也跟我们人类的生长发育以及寿命长短有密切的关系。 今天就跟着小编,从睡眠的效果方面重新认识一下睡眠的重要性吧。 消除身体和大脑的疲劳 不管是从事体力劳动的还是做办公室的,人的大脑一直处于活动状态,消耗很多的能量,而消除这其中的疲劳,睡眠是非常必要的。而要消除大脑的疲劳,往往比消除身体的疲劳需要更多的睡眠。 消除压力 感到有压力的状态,其实也可以说是大脑处于疲惫的状态。就像有人说“讨厌的事情,睡一觉就忘了”一样,通过睡眠能够让疲惫的大脑得到休息,睡眠是非常有效的解压方法。 经常性地慢性睡眠不足,会使压力慢慢囤积,也可能会引发早起的忧郁症等精神疾病。 身体的成长发育以及防止老化 睡眠中是成长荷尔蒙分泌的重要时期。在青少年生长发育期,能够有充足的睡眠是长高的秘诀。另外成长荷尔蒙对成人来说也很重要,对老化的肌肤,伤口,以及其他身体组织的修复以及再生、脂肪燃烧等都有重要作用,所以优质的睡眠能够保持年轻防止老化。 预防疾病 睡眠是,骨髓中产生白血球,红血球等能够促进血液循环,有提高身体抵抗力以及免疫力。睡眠还能够减轻心脏的负担,是心脏能够得到休息。好的睡眠能够产生新鲜的血液,分泌促进代谢的成长荷尔蒙等等,预防各种疾病。 提高记忆力和学习效率 人的大脑在睡眠中,会对当天发生的事情,学习的内容进行整理,作为记忆留在脑中。尤其是在浅眠的时候能够进行各种信息的整理。 浅度睡眠一般是在睡后3小时左右之后的周期性出现,能加深记忆,如果要想考试有好的学习效果,至少要保持3个小时以上的睡眠时间。经常听到在考试前一天通宵,这样法尔不能充分发挥学习效果,很可能达不到好的学习目标。 在如今繁忙的现代社会,无论小孩还是大人,我们都要理解睡眠的重要性。还要在有限的时间,保证优质的睡眠,更多详情还请继续关注。

达芬奇睡眠记忆训练法

达芬奇睡眠记忆训练法 一提到天才,大多数人都会立即想到爱因斯坦,我从小也超喜欢爱因斯坦,不过,最近通过对达芬奇的了解,天才在我的头脑中慢慢变成达芬奇了!下面,来为你介绍达芬奇睡眠记忆训练法。 传说达芬奇在500多年前创造了一个奇怪的睡眠作息时间表——“达芬奇睡眠法”,规定每4小时就要小睡15分钟。这样一来,每天只需要睡一个半小时就够了,“节省”出大量的时间帮助他成为一名罕见的博学家——达芬奇除了是首屈一指的画家,还是雕刻家、建筑师、音乐家、科学家、数学家、工程师、发明家、解剖学家、地质学家、植物学家和作家…… 如此神奇的睡眠大法,一下子吸引了时间永远不够用的都市人,网上多个教育论坛将达芬奇睡眠法冠以“考前复习必备”之名隆重推出。国外已有厂家专门推出了相应的“达芬奇闹钟”,每4小时就会提醒你该睡觉或醒来。 这样睡觉可行吗?有没有人试过?会不会伤害身心?睡眠专家对此表示质疑,认为会影响睡眠质量。试过者的经验也似乎在提示——此路不通。 像达芬奇一样去睡觉所谓达芬奇睡眠法,其实是多相睡眠的一种。多相睡眠的概念最早由奥地利心理学家J;S;斯塞曼斯奇提出,指

在24小时内进行多次睡眠,与通常晚上一觉睡到天亮的“单相”睡眠,以及晚上睡一觉+午间小睡的“双相”睡眠相对。通俗地说,“多相”就是睡睡醒醒。 多相睡眠法除了达芬奇睡眠法,还有乌布曼、艾瑞曼、迪马逊多相睡眠法。其中流传甚广的乌布曼睡眠法每天只睡3小时,支持者称可“缩短用处不大的睡眠,直接进入更有用的慢波睡眠期”。若能坚持20年,跟每天睡8小时的普通人相比,多相睡眠者相当多延长了约11年的人生。 支持者还声称,多相睡眠头两个星期最难适应,可能出现恶心、头晕等问题,但坚持10~14天之后就好了,“你将享受到更多时间,更清晰的睡梦,对身体的控制能力更强——英国诗人拜伦、美国总统杰弗逊、法国皇帝拿破仑等都是这样睡觉的。” 达芬奇睡眠法质疑:多相睡眠的名人查无实据波兰记忆和睡眠专家派奥;沃兹涅克博士在论文《多相睡眠:事实与误区》中称,至今未有确切资料证实达芬奇是个多相睡眠者,反而有很多不支持多相睡眠的证据:达芬奇所处的文艺复兴时期没有电灯、电视和丰富的夜生活,人们习惯日出而作,日落而息;达芬奇本人说过“正如充实的一天会带来愉快的睡眠,好好度过的一生也会带来幸福的死亡”;有达芬奇的传记描述,他在画《最后的晚餐》时一天到晚连续不停地忘我工作,甚至不吃不喝。 针对多相睡眠法支持者认为许多名人也采用此种方法,沃兹涅克对拿破仑等人进行考证,发现他们似乎都没有多相睡眠的习惯。但网

相关主题
文本预览
相关文档 最新文档