The controversial topic concerning loneliness never fails to attract public attention.In today's world, an increasing number of people live alone, while in the past they did not use to live alone. In my opinion, I think this is a negative developement because it could negatively impact folk's mental health, and it could increase loneliness-related issues. For these reasons, I think being alone is not only bad but also could lead to bad outcomes. This essay will discuss why I think so and will provide a logical conclusion.