Currently, the average life expectancy of the Earth’s population is at an all-‐time high. Many factors have contributed to this, but the main reason people live longer now than ever before is because it is easier to live a healthier life than in the past.
The main reason people live longer now is that the overall diet of modern society has improved. This can be attributed to advances in agricultural production. Thanks to more efficient and cost-‐ effective machinery and transportation, food is more abundant and cheaper now more than ever. Fruits, for example, are more readily available than before. In the past, summer fruits such as strawberries and oranges were not available during the wintertime. Now, because of refrigeration and greenhouse technology, we can buy any kind of fruit, regardless of the season. This allows people to have a wider variety of vitamins in their diet, increasing their overall health.
In addition to the advancement of agricultural science, there have been great advances in nutritional science. Scientists and dietitians understand more now than they did in the past about what is required in our daily diets. Issues like vitamin deficiency were not properly understood in the past, so people would have several complications without understanding the cause or the cure. People also better understand what foods to avoid. For example in the past, gout was a serious problem among men, who did not understand that a diet of rich and oily foods with few vegetables was the cause of this health defect. Now, proper nutrition is common knowledge and each year advances are made in understanding health. We know more know, so it’s easier for us to maintain our health.
Finally, it is easier to maintain our health now in the past, because modern governments have established better systems of health and sanitation. In the past, aspects of the health system, like medical education and research, were not well organized. In the past doctors received their degrees from institutions that all had varying requirements. Now there is a more established system of medical education, including international standards and guidelines. Governments play a large part in implementing these standards. Other systems of health regulation that governments have established is sanitation. Before people understand the importance of proper waste disposal, cities were susceptible to devastating plagues. In modern times, through proper sewage systems, waste disposal, and other health quarantine measures governments have been able to effectively contain diseases and help save the lives of many people. These systems have made it easier to keep the general popular safe and healthy.
With the advancement and development of food production, nutritional science, and government systems of health and sanitation has made it more possible than ever for people to lead long and healthy lives.
Some people prefer to get up early in the morning to start the day's work; while other people like to get up later in the day to work until late at night. Which option do you prefer? I would choose to get up early in the morning. This view is based on the following reasons.
By getting up early in the morning you can enjoy a lot of good things that the nature offers. You can breathe fresh air, smell aroma of flowers and listen the birds singing in the morning. What a beautiful world! In the meantime, these can refresh our brains and quickly get ready for the day's work. We can immediately concentrate on the work, and solve the problems with great efficiency. For example, when I was in senior middle school, I got up early in the morning everyday to go over my lessons and prepare for the courses that I would have that day. I found it was so efficient and I memorized my study material so deeply. On the contrary, people who get up late and go to bed late tend to leave all the day's work to the night, and tend to go to bed until the finish the day's work. This is not a good living habit and also not an efficiently way of working.
Another reason why I would like to get up early to start a day's work is because I believe that it is good for our health. The body's cycle follows the nature: when the sun rises, it is time to get up; when the moon rises, it is time to go to bed. Besides, by getting up early we can have time to do some exercises such as jogging, hiking and swimming, which will benefit our health. Many statistics show that most people who live a long life get up early and go to bed early. While getting up late and go to bed late violates human biology and therefore will do harm to the health. And people who get up late never got a chance to do morning exercises.
In a word, getting up early is a smart choice for people; it can benefit both people's work and health.
Back in the days, the world suffered from instances of food-related issues such as shortage, sanitation, and nutritional content. Today, with the numerous advances in related fields of technology, most if not all, of these problems are just a memory of the past. Many claim, in particular, that the foods we consume today are of a much higher quality, thereby making them healthier to eat. But is this certainly the case? I don’t think so.
The last time I checked, there were lots of fast food chains sprawling in our cities and even in some suburban areas. In these places are common sights of obese children and other unhealthy-looking consumers. It does not stop here. The situation gets worse. Remember the time that the price of staple food like rice was sky-high because of limited supply? Well, that’s not the case now. However, there were news reports showing that most of these food supplies, though plentiful, lack the necessary nutritional content. Certain varieties were even proven to be harmful instead. Does the term Genetically Modified Organisms (GMO) ring a bell? In spite of our efforts to produce agricultural products with higher yield, the main concern seems to be this. Are we really eating healthier food now?