sleep cycle
noun [ C ] uk/ˈsliːp ˌsaɪ.kəl/ us/ˈsliːp ˌsaɪ.kəl/
睡眠周期
a period of sleep consisting of five different parts, each of which has different brain activity
Daytime naps can be very disruptive to your sleep cycle. 白天的小睡会对你的睡眠周期造成很大的干扰。
The changing sleep cycles allow the brain to repair itself. 变化的睡眠周期可以让大脑进行自我修复。
- More examples
- Pilots reset their sleep cycles by drinking coffee and watching videos.
- Melatonin, a hormone secreted by the brain, is closely associated with the body's sleep cycle.
- The brain gets time to rest during the deepest part of our sleep cycle, known as non-REM (rapid eye movement) sleep.