Would you like to live for a long time? Well, there some studies have conducted by the school of medicine at Boston Unversity. The participants are 70000 females and 1500 males, who also military veterans.
Those studies confirm a kind of relationship between the thinking way and live long. In brief, if you have positive thoughts, you will live for eight decades. On the other hand, if you have negative thoughts, your chance to live long will decrease around 11-15%. Researchers make a survey that can be able to assess the optimism levels of participants.
Finally, I believe that life is a big dream, we can make better. The anxiety would not solve any problem. The positive thinkers who make our life better. For example look at Edison, if he surrendered at the third attempt we would not have found electricity.
The resources of this essay: https://breakingnewsenglish.com/1908/190829-positive-thinking.html