题目内容：

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

How to achieve a healthy lifestyle

We all know that it is good to live a healthy life. 1.（live）a healthy life means we should eat healthy food. Yet for many of us keeping a healthy lifestyle is very difficult. Part of this is because we are creatures of habit.

So if you want 2.（live）a healthy life，you have to change your habits that are not so healthy. In order to feel less tired，you have to replace your habit of sleeping only 4 hours a day with sleeping at least 6 hours a day.

Now when most people decide to live a more healthy life，they try to deal with all of their habits all at once. Take losing weight 3. example. They go on 4. quite strict diet, and yes, they do lose weight sometimes a lot of weight in a short period. But they do not really change their eating habits. So these people often notice they will gain the weight 5. and more even, once they stop the diet.

And the same holds true for these people. They start exercising in order to lose weight or to overcome a physical problem. Once the weight has been lost or the problem has been overcome, many stop 6. (exercise). It has not become a habit.

In fact, a lot of people don't look forward to 7. (create) these habits, such as eating breakfast, regular physical exercise and enough sleep. People complain these habits are so 8. (bore) and difficult to achieve that they have 9. (little) time to spend on things they like to do. So people should change their attitudes first. What if you thought of chocolate as a kind of boring food? What if you thought of physical exercise as something 10. (relax)?