Health is 【小题1】 most important thing in the world. Nothing is more important than health. If one takes away our money, houses, cars, or even our clothes, we can still survive. 【小题2】 if our health is taken away, it is certain that we will die. That is why we always try to eat in a 【小题3】 (health) way and exercise often. 

How can we keep healthy? In order to eat healthily, I usually avoid 【小题4】(eat) foods high in fat, like French fries or cookies, 【小题5】 are junk foods. I eat lots of vegetables and fresh fruit. In addition, I only eat a little meat. 

【小题6】 the other hand, doing exercise is very important. Taking exercise every day 【小题7】(help) us build a strong body. Regular exercise is an important part of keeping me healthy. 

What’s more, I think friends are an important part of one’s health. I always feel better when I am with friends than alone. When I am with friends I always laugh. Laughing is also an important part of health. It is good 【小题8】(stay) with my friends. By eating properly and exercising 【小题9】(regular), I can keep my body at a proper weight. By spending time with my friends, I can keep my mind as well as my body happy. These things sound easy to do, but not many people can manage 【小题10】(they). I think a strong will is necessary if we want to keep fit.

We’ve long known that the ability   【小题1】 (laugh) is helpful to those dealing withmaj or illnesses and the stress of life’s problems. But researchers are now saying laughter can do a lot more — it can basically bring balance to all the   【小题2】 (component) of the immune system (免疫系统), which helps us fight off diseases.

Laughter reduces levels of certain stress hormones (荷尔蒙). In this way, laughter provides a(n) 【小题3】 (safe) control that shuts off the flow of stress hormones and the fight-or-flight chemicals that act 【小题4】 (immediate) in our bodies when we experience stress, anger, or any other bad feeling. These stress hormones prevent the immune system from working, increase   【小题5】 number of platelets (血小板), and raise blood pressure. When we’re laughing, the   【小题6】 (nature) cells in our body that destroy viruses increase.

What may surprise you even more is the fact   【小题7】 researchers assume that laughing 100 times is equal to 10 minutes on a(n)   【小题8】 (row) machine or 15 minutes on an exercise bike. Laughing can be a total body workout! Blood pressure   【小题9】 (reduce), and there is an increase in blood flow and the amount of oxygen in the blood, which helps you become even healthier. Laughter also gives your facial, leg and back muscles a workout. That’s why you often feel exhausted after a long burst 【小题10】 laughter — you’ve just had an energetic workout!

Do you remember a time when you had no worries stopping you from 【小题1】(get) a good night’s rest? Unfortunately, your happy childhood is 【小题2】(probable) a thing of the past.

A recent survey has found that many people suffer from sleep problems. Some are 【小题3】(able) to fall asleep, some wake up in the middle of the night, and others simply do not get enough sleep. One of the reasons 【小题4】people fail to get a good night’s sleep is pressure from school or work. Noise pollution and light pollution in big 【小题5】(city) may also contribute to sleep problems. In the short term, people with sleep problems often feel tired and have trouble concentrating. In the long term, they may be 【小题6】increased risk of having a poor memory, being overweight and suffering 【小题7】heart attack. Sleep problems are especially dangerous for teenagers. They are still growing, 【小题8】night is the time when their bodies grow faster. Teenagers who do not sleep well may experience situations where body development 【小题9】(slow) down, and their health suffers.

So, if you have trouble getting a good night’s sleep, it might be time 【小题10】(make) some changes in your lifestyle.