Heterosexual sleep means that people are in a semi-sleep state and there is still some consciousness, not entering deep sleep. After humans fall asleep, they generally go through 4 stages and out-of-phase sleep periods. These stages of sleep start from the first stage to the end of the out-of-phase sleep, repeat the cycle, and restart the first stage after the end of the out-of-phase sleep. Every night's sleep usually has 4-5 cycles, and a complete sleep cycle lasts generally 90-110 minutes. According to a recent study, humans' heterogeneous sleep can blur the painful memory, slow down the pain in the heart, and have the effect of “nocturnal treatmentâ€. Researchers looked at the same emotionally fluctuating photos for the two groups of investigators. One group watched the first time at noon. After reading, they routinely worked and looked at the second time at night. The Other group watched the first time in the evening, fell asleep immediately after reading, and looked up the second time when they woke up the next day. It was found that the second group of investigators was more resilient than the first group. The reasons why people need to sleep are not yet clear, but they do reduce stress, relieve fatigue, and cure their own physical and psychological functions. Fold Flat Mask Machine Online,Fold Flat Face Mask Machine Online,Fold Flat Mask Machine,Fold Flat Face Mask Machine Dongguan Huitong Automatic Machinery Technology Co., Ltd , https://www.breezesolution.com