But in most casesit's a matter of bad sleeping habits.Everyone's experienced the fatigue(疲乏),shorttemper and lack of focus that often follow a poor night'ssleep.An occasional night without sleep makes you feeltired and cross the next day, but it won't harm yourhealth. After several sl...
Time spent in vigorous activity did not differ between groups and there was no interaction between total sleep time and time slept before midnight. CONCLUSIONS: Sleeping seven to nine hours per night with at least one hour of sleep before midnight seems to favorably effect daily physical...
Related:Is 5 hours of sleep enough at night? At night, the body cycles through five stages which fall into two categories: rapid eye movement or REM sleep and non-REM sleep, TODAY.com previously reported. During the recommended seven hours of sleep, people go through about four or five cy...
Participants self-reported sleeping an average of 6.9 h per night, which is consistent with the device-measured 6.6 average hours of TST. Self-reported hours slept was highly correlated with device-measured TST (r = 0.74,P < 0.001). The median bedtime was 12:44 AM and the median...
of the day—for example, during daylight hours, during evening hours, and at night during sleeping hours. Because ofrefractionin theatmosphereowing to the nighttimetemperature inversion, relatively loud sounds can be introduced into an area from a rather distant highway, airport, or railroad. One...
Craig Canapari, use of this medication results in less difficulty with falling asleep, earlier time of sleep onset, and more sleep at night.Products containing lower-dose melatonin for kids do exist on the U.S. market. Long-term use of this medication has not been studied in clinical ...
Although students reported sleeping 6.5 h a night on average, when such a duration was offered on successive nights in a controlled setting, poorer memory performance and a cumulative decline in vigilance were observed. Show abstract Adolescent sleep and the foundations of prefrontal cortical ...
This randomized clinical trial assessed the effectiveness of tai chi practice for insomnia among adults aged 60 years or older in comparison with
You know lack of sleep can make you grumpy and foggy. You may not know what it can do to your sex life, memory, health, looks, and ability to lose weight. Here are 10 surprising -- and serious -- effects of sleep loss.
参考答案参考答案(1) the writer says that a nap at lunchtime is necessary.(2) the writer says that not getting enough sleep has serious effects on our brain's ability to work.(3) the writer gives ways of having good sleeping habits.(4) the writer says that the amount of sleep we need...