1 . Studies on the importance of sleep for health and the various effects of not having enough sleep have long been well-known. Being short of sleep can lead to poor memory and daytime sleepiness. It’s also been connected to diseases and weakens immune(免疫的)function. However, more than three-quarters of us fall asleep after 11pm and nearly a third stay up until 1am.
The concept(概念)of sleep procrastination was introduced in a 2014 study by Utrecht University in The Netherlands, which explained that it meant “failing to go to bed at the intended time, while nothing prevents a person from doing so”. If so, it will bring terrible results.
Studies have shown that “bedtime procrastination” is connected with a person’s working life during the day. “They feel out of control in their day life and the night is when they can be free,” says Dr Saliha Afridi. “It is full of things they ‘have to do’ rather than what they ‘want to do’. ” Studies have also found that increased working hours and the reduced leisure time may cause much stress and sleep procrastination. On occasion, people have trouble with feelings, concern and loneliness, so they were controlled by using social media, making them stay up late.
So how to avoid it? People should avoid thinking too much before bedtime and stay away from digital devices. Besides, taking a warm shower before bed and going to bed at the intended time are also important.
1. What’s the effect of not having enough sleep?| A．Increasing the risk of injuries. | B．Suffering from much stress. |
| C．Feeling sleepy in the daytime. | D．Losing the previous memory. |
| A．Staying up. | B．Keeping awake. | C．Getting up late. | D．Falling asleep. |
| A．A variety of hobbies. | B．Boring social activities. |
| C．Addiction to digital devices. | D．Working too many hours. |
| A．Form a good sleep habit. | B．Take regular exercise. |
| C．Listen to some soft music. | D．Surf the Internet less. |
