I found this topic unusual. So I decided to work on it. 

As for the essay by Lifei, the essay is great. I don't have any comments but I think there could be more lines in conclusion.

Here is my try...

Living healthy has been the wish of many people. For being healthy, people emphasize on balanced diet and enough physical activities by playing sports. In my opinion, staying healthy is solely personal interest which also has some indirect social implications. In the paragraphs that follow, I explain the reasons why being healthy is more for personal benefit, nevertheless I also include its indirect social implications.

Healthy life is directly related to someone personal benefits it encompasses. Healthier people are expected to be fit mentally and physically which is directly related to the higher work productivity. In the course of being ‘fit’, people play different games that help them to increase the friend circle and increase the interaction with different people. It is generally agreed that the public connection is always an asset. At last, playing in team instill in them team work capacity and understanding, helping and respecting others. Moreover, people will be motivated to be healthy by playing or by proper diet for personal benefits rather collective benefit. For someone who joins gyms, starts jogging, plays football or pays attention on diet, personal benefits are often the motivational factor.

Looking at global perspective, it is unanimously agreed fact that group of healthy persons makes the healthy society and healthy nation. Healthier society means there is reduced number of avoidable but otherwise common health problems like high blood pressure, diabetes and some forms cancer. Reduction is such problems leads to the saving of large share of government spending which can be spent well in other social welfare activities. Poor health is not only problem to the patients but also to the relatives and close members of the respective society. Someone needs to find time for nursing and taking care of patient which could be reduced to some level if every individual is motivated on being healthy.

In conclusion, no one can argue that group of healthy individuals is beneficial to the society and the nation in macroscopic level. But staying healthy is personal preferences. People can only be motivated to being healthy only on the terms personal benefits.