Practice for English Writing-3 Today, I feel more energetic since I slept early yesterday night. Sleep is so important to human beings. Nowadays in China many young people tend to work or play very late at night which I think is so harmful to health. But sometimes we have to do such things especially for work reason. We know, China is a developing country and the pace of economy development is fast, young people in the city have to struggle to earn a good life.