我们可能都知道缺乏睡眠的危害，但是最近科学家发表研究表示睡太多也不好。
研究结果发现，那些每晚睡九小时的人群，他们的认知能力全面下降，学习能力下降了百分之二十二，语言流利度下降了20%，记忆力下降了13%，而这些是阿尔兹海默症等痴呆症的早期症状。
所以如果睡太多，可能会增加患痴呆症的风险。
Hover a word for its pinyin & meaning; click to pin it.
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| Chinese | Pinyin | English |
|---|---|---|
| 我们 | wǒ men | we; us; ourselves; our |
| 可能 | kě néng | might (happen) / maybe / perhaps |
| 都 | dōu | all; both; entirely |
| 知道 | zhī dào | to know; to become aware of |
| 缺乏 | quē fá | to lack; to be short of |
| 睡眠 | shuì mián | sleep |
| 的 | de | possessive particle (of; 's) / modifying particle (used after an attribute to modify a noun or to form a nominal expression) |
| 危害 | wēi hài | harmful effect; damage |
| 但是 | dàn shì | but; however |
| 最近 | zuì jìn | recently |
| 科学家 | kē xué jiā | scientist |
| 发表 | fā biǎo | to issue / to publish |
| 研究 | yán jiū | research / a study |
| 表示 | biǎo shì | (of sb) to express; to state; to show / (of sth) to indicate; to signify; to show |
| 睡 | shuì | to sleep / to lie down |
| 太 | tài | too (much) / very / extremely |
| 多 | duō | too many; in excess |
| 也 | yě | also; too; as well; (not ...) either |
| 不 | bù | no; not so |
| 好 | hǎo | good / appropriate; proper |
| 结果 | jié guǒ | outcome; result; consequence |
| 发现 | fā xiàn | to notice; to become aware of / to discover; to find; to detect |
| 那些 | nà xiē | those |
| 每 | měi | each / every |
| 晚 | wǎn | evening / night |
| 九 | jiǔ | nine / 9 |
| 小时 | xiǎo shí | hour |
| 人群 | rén qún | crowd |
| 他们 | tā men | they; them |
| 认知 | rèn zhī | cognitive |
| 能力 | néng lì | capability / ability |
| 全面 | quán miàn | all-around / comprehensive / total / overall |
| 下降 | xià jiàng | to decline / to drop / to fall / to go down / to decrease |
| 学习 | xué xí | to learn / to study |
| 了 | le | (completed action marker) / (modal particle indicating change of state, situation now) |
| 百分之 | bǎi fēn zhī | percent |
| 二十二 | èr shí èr | twenty-two; the number 22 |
| 语言 | yǔ yán | language |
| 流利 | liú lì | fluent |
| 度 | dù | measure / limit / extent / degree of intensity |
| 记忆力 | jì yì lì | faculty of memory; ability to remember |
| 而 | ér | but (not) / yet (not) / (indicates contrast) |
| 这些 | zhè xiē | these |
| 是 | shì | to be (followed by substantives only) |
| 阿尔兹海默症 | ā ěr zī hǎi mò zhèng | Alzheimer's disease; a progressive neurodegenerative disorder and common cause of dementia. |
| 等 | děng | and so on; etc.; et al. / (used to end an enumeration) |
| 痴呆症 | chī dāi zhèng | dementia |
| 早期 | zǎo qī | early period; early phase; early stage |
| 症状 | zhèng zhuàng | symptom (of an illness) |
| 所以 | suǒ yǐ | therefore / as a result / so |
| 如果 | rú guǒ | if; in case; in the event that |
| 会 | huì | to be likely to; to be sure to |
| 增加 | zēng jiā | to raise; to increase |
| 患 | huàn | to suffer (from illness) / to contract (a disease) |
| 风险 | fēng xiǎn | risk; hazard |