There are five phases of sleep: stages 1 2 3 4 and REM (rapid eye movement). Stage 1 Stage 1 sleep is light sleep. You experience a drifting in and out of sleep. You can be easily woken up. Your eye movement and body movements slow down. You may experience sudden jerky...
We now know that generally speaking,there are three stages of sleep: light sleep, rapid eye movement or REM and deep sleep. 我们现在知道,一般来说,睡眠有三个阶段:浅睡期、快速动眼期、及深度睡眠期。 We measure these stages by connecting electrodes to ...
The two phases of sleep are broken down into four cycles. The first three cycles take place in non-REM, and the last stage happens during REM sleep. During these stages, a person’s body goes through multiple physiological changes that are vital for physical and cognitive health4. Non-REM ...
The first two stages of sleep are of a relatively light quality, called transitional periods. During stage I, you relax your muscles, breathe deeply and slowly, slowly roll your eyes, and frequently move your limbs for 5-10 minutes. You might experience hypnagogic phenomena where you jerk as...
There are traditionally 4 stages of sleep: awake, light, deep, and REM sleep. Each one plays an essential role in maintaining your mental and physical health. As you’re reading about sleep, you may also see the terms “NREM” or “NREM Stages 1-4.” These are simply other terms for...
The two phases of sleep are broken down into four cycles. The first three cycles take place in non-REM, and the last stage happens during REM sleep. During these stages, a person’s body goes through multiple physiological changes that are vital for physical and cognitive health4. ...
The body clock responds to light cues, ramping up production of the hormone melatonin at night and switching it off when it senses light.生理时钟对光信号有所反应，在夜晚会加速荷尔蒙，褪黑激素的分泌，并在感应到光线时关闭。There are four stages of sleep that the body experiences in cycles ...
4. 答案:Most dreams occur during the rapid eye movement (REM) stage of sleep. 解析:文章第四段 “There are different stages of sleep, and dreams mainly occur during the rapid eye movement (REM) stage.” 给出了答案。 5. 答案:Writing down your thoughts as soon as you wake up is one ...
What Are the Stages Of Sleep? Sleep comes in a variety of stages (five, to be exact!). There are some more restless hours in a night’s sleep, and some filled with a load of activity, dreams and movements. Broadly speaking, sleep can either be non-rapid eye movement sleep (NREM) ...
REM sleep. b. the hypnagogic state. c. stage 4. d. none of these. Paradoxical sleep is also known as a. REM sleep. b. the hypnagogic state. c. stage 4. d. none of thes a. Describe the stages of sleep. b. In which sta...