City life in the 21st century

It is well known that a great part of the world's population lives in the city, where, the number of citizens varies from 10-15 thousand to even 20 millions of people. In the largest cities of the world, the problems such as with stress, caused by this overcrowding, have increased significantly/ become significantly important.
The average citizen, in Moscow for example, everyday has to interact with hundreds of people everyday, especially when using public transportation, he hears all these irritating noises and reacts quickly to all kinds of situations during his day, which demands from him a strong concentration on his part. As for me, I have lived in Moscow already for three years and sometimes, I might feel the negative impact of the ciity life on my mood, due to the crowd around of me. Actually, I have this experience almost every day on the train/subway underground where you have to travel so close to other people without having your “own space”.
On the other hand, there are a lot of ways to reduce stress, taking advantage of all the benefits of city living in a city. It can be good to relax resting in our wonderful parks, green zones, maybe restaurants, cafes and so on. Additionally, urban areas give you all the necessary opportunities to improve yourself, I mean the types of activities or jobs are vast here, therefore you could find something, what you exactly what you need.
In short, it certainly depends on the person, because there are a lot of people, who really like and enjoy the urban lifestyle and for them, the  advantages of such life are more better, than possible stress.

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Good job. :)