Do you know the reason why we feel tired in the middle of a class? Maybe you would say it’s because the teacher’s class is boring. However, the real reason is probably that we don’t have enough sleep. Here are what sleep researchers have found about how to sleep.
Why do we need sleep? Sleep helps our body grow and stay healthy. It also gives us energy, so we can be active all day. Doctors say: When you close your eyes and need a rest, sleep is just the very best!
How much sleep do we need? It is known that all of us naturally need no less than eight hours of sleep per night. When we sleep below six hours per 24, we’re at a higher risk of health problems. Some of us think we can make up any of those hours lost during the week on the weekends. Sadly, there is no storage(储存) system for sleep in the brain.
New-born babies can sleep 20—22 hours a day. Children need 10—12 hours of sleep a day. Teenagers need 8—10 hours of sleep a day, while grown-ups usually need 6—8 hours of sleep to keep active.
A new research suggests a kind of strong connection between purpose in life and sleep. People who have a greater sense of purpose usually have better physical and mental health, which in turn explains their higher-quality sleep. Perhaps developing a sense of purpose in life could be as useful at improving sleep as the healthy habits above.
If you have trouble sleeping, set a goal and go for it! Maybe it will help you to have a sound sleep!
A Research on Sleep | ||
Introduction | Not getting enough sleep can | |
Reasons for sleeping | •Sleep can not only help our body grow, but also help us remain healthy. •We can be active in the daytime because sleep makes us | |
Sleep time | People of different ages need different sleep time. •Sleeping less than six hours a day can •Making up the lost sleeping hours during the workweek is impossible. | |
Connection between purpose of life and sleep quality | •A sense of purpose in life is •People’s higher quality of sleep depends on their better physical and mental health. |
Most people agree that a pet adds joy to a person’s life. Scientists are now finding that having a pet may keep its owner healthy. And good health may add years to a person’s life.
Scientists have been studying the connection between pets and health for years. In 1990, a study was done with people aged 65 and older. It shows that pet owners go to the doctor less than people without pets. Do pets make people happier? Do they help people live on their own longer? If the answer to these questions is yes, then having pets may be a good idea.
Can pets really help people live longer? Rebecca Johnson did a survey to find out. Johnson taught nurses how to care for older people. She shared the findings of her study at a meeting about pets and the aging. Her study shows that having pets may cause people to age more slowly.
The human body makes many chemicals (化学物质). Some of the chemicals make people feel good. Others make people feel bad. In Johnson’s study, levels of the good chemicals rose when people were around pets. Levels of the “bad” chemicals went down. The good chemicals seemed to slow the aging of cells (细胞). If this is true, maybe people should spend more time with their pets. Then the levels of good chemicals will go up. People might feel better and age more slowly.
They might even live longer.
General | Having a pet may keep its owner in good |
Fact 1 | |
Fact 2 | Having pets may cause people to age |
Explanation | The human body makes both good and bad chemicals. Levels of the good chemicals |
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