Healthy Lifestyle
It is widely known that life expectancy is increasing. But the reason why the average figures are higher than they used to be, say, hundred years ago is not that all people live longer than before. One reason is that, due to medical research, many illnesses were eliminated; the second one is that fewer people die in wars. Generally, the life of modern man is endangered by many factors. One is the increasing pollution of the environment by industry and transport; another one is sedentary lifestyle of people living in cities and towns, that is, the majority of the population of the planet. The third one is the quality of food we eat and water we drink which results in a lot of diseases. The fourth one is that living in big cities leads to epidemics, and even pandemics of many catchy illnesses. Unhealthy life results in the fact that many people are overweight.
The only possible way of preserving your health is, therefore, healthy way of life which includes keeping fit, balanced meals, and giving up unhealthy habits like smoking, drinking alcohol, and, of course, drugs.