Nowadays, a majority of people live in crowded cities. Some individuals do not pay attention to their health. This issue causes to doctors worry in many countries. Indeed, they stated that people do have not enough physical exercise. In the case of its reasons can be referred to lack of enough awareness about the importance of doing exercise on the health, as well they have involved a busy lifestyle, which in the following will be discussed about the mentioned reasons and provide the best suggestions to reduce that.