Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions in which sleep takes place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with less than this...
The amount of sleep needed depends on the age of the person and the conditions in which sleep 1 . The young may need more sleep than the old, but 2 eight hours are enough for the 3 of grownups. Some can 4 with less than this amount (量) but 5 may need more. Every person knows...
Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions in which sleep takes place. The young may need more sleep than the old but usually eight hours are enough for the health of grown-ups. Some can do with less than this ...
The amount of sleep needed by an individual can vary. Genetics and age play a large role, along with a number of other factors. But a good guideline—as recommended by the National Sleep Foundation—is generally seven to nine hours each night. It seems a majority of us do in fact hit...
The amount of sleep needed depends on the age of theperson and the conditions in which sleep 1 .The young may need more sleep than the old, but 2 eighthours are enough for the 3 ofgrownups.Some can 4 with less than this amount (量) but 5 may need more. Every person knows his ...
The amount of sleep needed 1 (depend) on the age of the person and the conditions in 2 sleep takes place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with 3 than this amount, but 4 may need more. Every...
Enough sleep is important to health. The amount o f sleep needed depends on the age of the person and the conditions in which sleep takes place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with less than th...
aEnough sleep is import to health.The amount of sleep needed depends on the age of the person and the condition in which sleep takes place . The young may need more sleep than the old, but usually eight hours are enough for health of grown-ups. 足够的睡眠是进口到健康。睡眠需要的相当数...
Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions in which sleep takes place. The young may need more sleep than the old, but usually eight hours are enough for the health of grown-ups. Some can do with less than this...
阅读理解Enough sleep is important to health. Theamount of sleep needed depends on the age ofthe person and the conditions in which sleeptakes place. The young may need more sleepthan the old, but usually eight hours areenough for the health of grown-ups. Some cando with less than this ...